Home / 31,439,836.88-47,159,755.31-8,720,734.13

Finding the Fourth Proportional to 31,439,836.88, 47,159,755.31 and 8,720,734.13

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Solution

The fourth proportional to 31,439,836.88, 47,159,755.31 and 8,720,734.13 is: 13,081,101.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439,836.88 : 47,159,755.31 = 8,720,734.13 : x
  2. Step 2: Convert to fraction form
    31,439,836.88/47,159,755.31 = 8,720,734.13/x
  3. Step 3: Cross multiply
    31,439,836.88x = 47,159,755.31 × 8,720,734.13
  4. Step 4: Simplify right side
    31,439,836.88x = 411,267,687,480,368.81
  5. Step 5: Solve for x
    x = 411,267,687,480,368.81/31,439,836.88
  6. Step 6: Final answer
    x = 13,081,101.19

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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.