Home / 31,439,836.13-47,159,754.19-8,720,733.38

Finding the Fourth Proportional to 31,439,836.13, 47,159,754.19 and 8,720,733.38

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Solution

The fourth proportional to 31,439,836.13, 47,159,754.19 and 8,720,733.38 is: 13,081,100.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439,836.13 : 47,159,754.19 = 8,720,733.38 : x
  2. Step 2: Convert to fraction form
    31,439,836.13/47,159,754.19 = 8,720,733.38/x
  3. Step 3: Cross multiply
    31,439,836.13x = 47,159,754.19 × 8,720,733.38
  4. Step 4: Simplify right side
    31,439,836.13x = 411,267,642,299,727.25
  5. Step 5: Solve for x
    x = 411,267,642,299,727.25/31,439,836.13
  6. Step 6: Final answer
    x = 13,081,100.06

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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.