Home / 18,721,817.10-28,061,730.45-9,620,397.90

Finding the Fourth Proportional to 18,721,817.10, 28,061,730.45 and 9,620,397.90

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Solution

The fourth proportional to 18,721,817.10, 28,061,730.45 and 9,620,397.90 is: 14,419,808.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,817.10 : 28,061,730.45 = 9,620,397.90 : x
  2. Step 2: Convert to fraction form
    18,721,817.10/28,061,730.45 = 9,620,397.90/x
  3. Step 3: Cross multiply
    18,721,817.10x = 28,061,730.45 × 9,620,397.90
  4. Step 4: Simplify right side
    18,721,817.10x = 269,965,012,691,546.06
  5. Step 5: Solve for x
    x = 269,965,012,691,546.06/18,721,817.10
  6. Step 6: Final answer
    x = 14,419,808.25

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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.