Home / 224,247,049.38-309,414,708.81-128,859,128.73

Finding the Fourth Proportional to 224,247,049.38, 309,414,708.81 and 128,859,128.73

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Solution

The fourth proportional to 224,247,049.38, 309,414,708.81 and 128,859,128.73 is: 177,799,038.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,247,049.38 : 309,414,708.81 = 128,859,128.73 : x
  2. Step 2: Convert to fraction form
    224,247,049.38/309,414,708.81 = 128,859,128.73/x
  3. Step 3: Cross multiply
    224,247,049.38x = 309,414,708.81 × 128,859,128.73
  4. Step 4: Simplify right side
    224,247,049.38x = 39,870,909,793,503,256
  5. Step 5: Solve for x
    x = 39,870,909,793,503,256/224,247,049.38
  6. Step 6: Final answer
    x = 177,799,038.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.