Home / 821,592,208,557.82-1,133,798,581,614.90-455,786,421,307.43

Finding the Fourth Proportional to 821,592,208,557.82, 1,133,798,581,614.90 and 455,786,421,307.43

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Solution

The fourth proportional to 821,592,208,557.82, 1,133,798,581,614.90 and 455,786,421,307.43 is: 628,986,001,345.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,592,208,557.82 : 1,133,798,581,614.90 = 455,786,421,307.43 : x
  2. Step 2: Convert to fraction form
    821,592,208,557.82/1,133,798,581,614.90 = 455,786,421,307.43/x
  3. Step 3: Cross multiply
    821,592,208,557.82x = 1,133,798,581,614.90 × 455,786,421,307.43
  4. Step 4: Simplify right side
    821,592,208,557.82x = 516,769,997,997,695,284,805,632
  5. Step 5: Solve for x
    x = 516,769,997,997,695,284,805,632/821,592,208,557.82
  6. Step 6: Final answer
    x = 628,986,001,345.86

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Double scale
Find fourth proportional to 821,592,208,558.82, 1,133,798,581,616.28 and 455,786,421,308.43
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.