Home / 812,598,434.76-1,121,455,001.43-460,237,108.56

Finding the Fourth Proportional to 812,598,434.76, 1,121,455,001.43 and 460,237,108.56

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Solution

The fourth proportional to 812,598,434.76, 1,121,455,001.43 and 460,237,108.56 is: 635,166,381.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,598,434.76 : 1,121,455,001.43 = 460,237,108.56 : x
  2. Step 2: Convert to fraction form
    812,598,434.76/1,121,455,001.43 = 460,237,108.56/x
  3. Step 3: Cross multiply
    812,598,434.76x = 1,121,455,001.43 × 460,237,108.56
  4. Step 4: Simplify right side
    812,598,434.76x = 516,135,207,238,293,888
  5. Step 5: Solve for x
    x = 516,135,207,238,293,888/812,598,434.76
  6. Step 6: Final answer
    x = 635,166,381.28

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Double scale
Find fourth proportional to 812,598,435.76, 1,121,455,002.81 and 460,237,109.56
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1.5x scale

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.