Home / 654,587,308.78-903,349,619.26-357,248,633.98

Finding the Fourth Proportional to 654,587,308.78, 903,349,619.26 and 357,248,633.98

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Solution

The fourth proportional to 654,587,308.78, 903,349,619.26 and 357,248,633.98 is: 493,013,557.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,587,308.78 : 903,349,619.26 = 357,248,633.98 : x
  2. Step 2: Convert to fraction form
    654,587,308.78/903,349,619.26 = 357,248,633.98/x
  3. Step 3: Cross multiply
    654,587,308.78x = 903,349,619.26 × 357,248,633.98
  4. Step 4: Simplify right side
    654,587,308.78x = 322,720,417,486,988,096
  5. Step 5: Solve for x
    x = 322,720,417,486,988,096/654,587,308.78
  6. Step 6: Final answer
    x = 493,013,557.03

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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.