Home / 178,519,505.40-267,653,286.90-81,521,681.40

Finding the Fourth Proportional to 178,519,505.40, 267,653,286.90 and 81,521,681.40

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Solution

The fourth proportional to 178,519,505.40, 267,653,286.90 and 81,521,681.40 is: 122,224,996.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,519,505.40 : 267,653,286.90 = 81,521,681.40 : x
  2. Step 2: Convert to fraction form
    178,519,505.40/267,653,286.90 = 81,521,681.40/x
  3. Step 3: Cross multiply
    178,519,505.40x = 267,653,286.90 × 81,521,681.40
  4. Step 4: Simplify right side
    178,519,505.40x = 21,819,545,980,324,596
  5. Step 5: Solve for x
    x = 21,819,545,980,324,596/178,519,505.40
  6. Step 6: Final answer
    x = 122,224,996.82

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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.