Home / 28,531,417.38-39,373,432.29-15,478,676.30

Finding the Fourth Proportional to 28,531,417.38, 39,373,432.29 and 15,478,676.30

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Solution

The fourth proportional to 28,531,417.38, 39,373,432.29 and 15,478,676.30 is: 21,360,614.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531,417.38 : 39,373,432.29 = 15,478,676.30 : x
  2. Step 2: Convert to fraction form
    28,531,417.38/39,373,432.29 = 15,478,676.30/x
  3. Step 3: Cross multiply
    28,531,417.38x = 39,373,432.29 × 15,478,676.30
  4. Step 4: Simplify right side
    28,531,417.38x = 609,448,613,040,010.50
  5. Step 5: Solve for x
    x = 609,448,613,040,010.50/28,531,417.38
  6. Step 6: Final answer
    x = 21,360,614.68

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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.