Home / 10,403,781.90-15,605,672.85-9,144,069.90

Finding the Fourth Proportional to 10,403,781.90, 15,605,672.85 and 9,144,069.90

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Solution

The fourth proportional to 10,403,781.90, 15,605,672.85 and 9,144,069.90 is: 13,716,104.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,403,781.90 : 15,605,672.85 = 9,144,069.90 : x
  2. Step 2: Convert to fraction form
    10,403,781.90/15,605,672.85 = 9,144,069.90/x
  3. Step 3: Cross multiply
    10,403,781.90x = 15,605,672.85 × 9,144,069.90
  4. Step 4: Simplify right side
    10,403,781.90x = 142,699,363,376,932.22
  5. Step 5: Solve for x
    x = 142,699,363,376,932.22/10,403,781.90
  6. Step 6: Final answer
    x = 13,716,104.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.