Home / 15,640,274.67-21,575,909.21-13,572,387.87

Finding the Fourth Proportional to 15,640,274.67, 21,575,909.21 and 13,572,387.87

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Solution

The fourth proportional to 15,640,274.67, 21,575,909.21 and 13,572,387.87 is: 18,723,239.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640,274.67 : 21,575,909.21 = 13,572,387.87 : x
  2. Step 2: Convert to fraction form
    15,640,274.67/21,575,909.21 = 13,572,387.87/x
  3. Step 3: Cross multiply
    15,640,274.67x = 21,575,909.21 × 13,572,387.87
  4. Step 4: Simplify right side
    15,640,274.67x = 292,836,608,446,025.25
  5. Step 5: Solve for x
    x = 292,836,608,446,025.25/15,640,274.67
  6. Step 6: Final answer
    x = 18,723,239.50

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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.