Home / 178,733,805.40-268,100,708.10-126,581,728.60

Finding the Fourth Proportional to 178,733,805.40, 268,100,708.10 and 126,581,728.60

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Solution

The fourth proportional to 178,733,805.40, 268,100,708.10 and 126,581,728.60 is: 189,872,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,733,805.40 : 268,100,708.10 = 126,581,728.60 : x
  2. Step 2: Convert to fraction form
    178,733,805.40/268,100,708.10 = 126,581,728.60/x
  3. Step 3: Cross multiply
    178,733,805.40x = 268,100,708.10 × 126,581,728.60
  4. Step 4: Simplify right side
    178,733,805.40x = 33,936,651,070,182,020
  5. Step 5: Solve for x
    x = 33,936,651,070,182,020/178,733,805.40
  6. Step 6: Final answer
    x = 189,872,592.90

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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.