Home / 129,153,340.40-193,394,087.40-83,467,785.20

Finding the Fourth Proportional to 129,153,340.40, 193,394,087.40 and 83,467,785.20

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Solution

The fourth proportional to 129,153,340.40, 193,394,087.40 and 83,467,785.20 is: 124,984,581.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,153,340.40 : 193,394,087.40 = 83,467,785.20 : x
  2. Step 2: Convert to fraction form
    129,153,340.40/193,394,087.40 = 83,467,785.20/x
  3. Step 3: Cross multiply
    129,153,340.40x = 193,394,087.40 × 83,467,785.20
  4. Step 4: Simplify right side
    129,153,340.40x = 16,142,176,146,053,228
  5. Step 5: Solve for x
    x = 16,142,176,146,053,228/129,153,340.40
  6. Step 6: Final answer
    x = 124,984,581.09

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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.