Home / 178,087,972.80-266,976,439.20-68,987,582.40

Finding the Fourth Proportional to 178,087,972.80, 266,976,439.20 and 68,987,582.40

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Solution

The fourth proportional to 178,087,972.80, 266,976,439.20 and 68,987,582.40 is: 103,421,128.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,087,972.80 : 266,976,439.20 = 68,987,582.40 : x
  2. Step 2: Convert to fraction form
    178,087,972.80/266,976,439.20 = 68,987,582.40/x
  3. Step 3: Cross multiply
    178,087,972.80x = 266,976,439.20 × 68,987,582.40
  4. Step 4: Simplify right side
    178,087,972.80x = 18,418,059,098,168,592
  5. Step 5: Solve for x
    x = 18,418,059,098,168,592/178,087,972.80
  6. Step 6: Final answer
    x = 103,421,128.38

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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.