Home / 21,309,670.10-31,964,505.15-9,342,406.10

Finding the Fourth Proportional to 21,309,670.10, 31,964,505.15 and 9,342,406.10

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Solution

The fourth proportional to 21,309,670.10, 31,964,505.15 and 9,342,406.10 is: 14,013,609.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,309,670.10 : 31,964,505.15 = 9,342,406.10 : x
  2. Step 2: Convert to fraction form
    21,309,670.10/31,964,505.15 = 9,342,406.10/x
  3. Step 3: Cross multiply
    21,309,670.10x = 31,964,505.15 × 9,342,406.10
  4. Step 4: Simplify right side
    21,309,670.10x = 298,625,387,896,841.38
  5. Step 5: Solve for x
    x = 298,625,387,896,841.38/21,309,670.10
  6. Step 6: Final answer
    x = 14,013,609.15

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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.