Home / 13,287,000.60-18,336,060.78-7,175,428.92

Finding the Fourth Proportional to 13,287,000.60, 18,336,060.78 and 7,175,428.92

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Solution

The fourth proportional to 13,287,000.60, 18,336,060.78 and 7,175,428.92 is: 9,902,091.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287,000.60 : 18,336,060.78 = 7,175,428.92 : x
  2. Step 2: Convert to fraction form
    13,287,000.60/18,336,060.78 = 7,175,428.92/x
  3. Step 3: Cross multiply
    13,287,000.60x = 18,336,060.78 × 7,175,428.92
  4. Step 4: Simplify right side
    13,287,000.60x = 131,569,100,799,689.77
  5. Step 5: Solve for x
    x = 131,569,100,799,689.77/13,287,000.60
  6. Step 6: Final answer
    x = 9,902,091.88

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1.5x scale

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.