Home / 178,733,785.40-268,100,678.10-126,581,708.60

Finding the Fourth Proportional to 178,733,785.40, 268,100,678.10 and 126,581,708.60

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Solution

The fourth proportional to 178,733,785.40, 268,100,678.10 and 126,581,708.60 is: 189,872,562.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,733,785.40 : 268,100,678.10 = 126,581,708.60 : x
  2. Step 2: Convert to fraction form
    178,733,785.40/268,100,678.10 = 126,581,708.60/x
  3. Step 3: Cross multiply
    178,733,785.40x = 268,100,678.10 × 126,581,708.60
  4. Step 4: Simplify right side
    178,733,785.40x = 33,936,641,910,716,600
  5. Step 5: Solve for x
    x = 33,936,641,910,716,600/178,733,785.40
  6. Step 6: Final answer
    x = 189,872,562.90

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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.