Home / 78,392,505.14-108,187,715.67-47,031,734.30

Finding the Fourth Proportional to 78,392,505.14, 108,187,715.67 and 47,031,734.30

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Solution

The fourth proportional to 78,392,505.14, 108,187,715.67 and 47,031,734.30 is: 64,907,428.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,392,505.14 : 108,187,715.67 = 47,031,734.30 : x
  2. Step 2: Convert to fraction form
    78,392,505.14/108,187,715.67 = 47,031,734.30/x
  3. Step 3: Cross multiply
    78,392,505.14x = 108,187,715.67 × 47,031,734.30
  4. Step 4: Simplify right side
    78,392,505.14x = 5,088,255,897,915,386
  5. Step 5: Solve for x
    x = 5,088,255,897,915,386/78,392,505.14
  6. Step 6: Final answer
    x = 64,907,428.19

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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.