Home / 28,678,123.71-43,025,091.98-11,418,445.22

Finding the Fourth Proportional to 28,678,123.71, 43,025,091.98 and 11,418,445.22

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Solution

The fourth proportional to 28,678,123.71, 43,025,091.98 and 11,418,445.22 is: 17,130,815.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678,123.71 : 43,025,091.98 = 11,418,445.22 : x
  2. Step 2: Convert to fraction form
    28,678,123.71/43,025,091.98 = 11,418,445.22/x
  3. Step 3: Cross multiply
    28,678,123.71x = 43,025,091.98 × 11,418,445.22
  4. Step 4: Simplify right side
    28,678,123.71x = 491,279,655,586,873.69
  5. Step 5: Solve for x
    x = 491,279,655,586,873.69/28,678,123.71
  6. Step 6: Final answer
    x = 17,130,815.83

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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.