Home / 148,608,005.20-222,912,007.80-90,494,931.85

Finding the Fourth Proportional to 148,608,005.20, 222,912,007.80 and 90,494,931.85

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Solution

The fourth proportional to 148,608,005.20, 222,912,007.80 and 90,494,931.85 is: 135,742,397.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,608,005.20 : 222,912,007.80 = 90,494,931.85 : x
  2. Step 2: Convert to fraction form
    148,608,005.20/222,912,007.80 = 90,494,931.85/x
  3. Step 3: Cross multiply
    148,608,005.20x = 222,912,007.80 × 90,494,931.85
  4. Step 4: Simplify right side
    148,608,005.20x = 20,172,406,954,407,668
  5. Step 5: Solve for x
    x = 20,172,406,954,407,668/148,608,005.20
  6. Step 6: Final answer
    x = 135,742,397.78

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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.