Home / 178,476,487.32-267,790,402.50-86,428,809.21

Finding the Fourth Proportional to 178,476,487.32, 267,790,402.50 and 86,428,809.21

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Solution

The fourth proportional to 178,476,487.32, 267,790,402.50 and 86,428,809.21 is: 129,679,858.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,476,487.32 : 267,790,402.50 = 86,428,809.21 : x
  2. Step 2: Convert to fraction form
    178,476,487.32/267,790,402.50 = 86,428,809.21/x
  3. Step 3: Cross multiply
    178,476,487.32x = 267,790,402.50 × 86,428,809.21
  4. Step 4: Simplify right side
    178,476,487.32x = 23,144,805,605,941,604
  5. Step 5: Solve for x
    x = 23,144,805,605,941,604/178,476,487.32
  6. Step 6: Final answer
    x = 129,679,858.41

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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.