Home / 402,930,905.60-604,396,358.40-130,329,228.80

Finding the Fourth Proportional to 402,930,905.60, 604,396,358.40 and 130,329,228.80

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Solution

The fourth proportional to 402,930,905.60, 604,396,358.40 and 130,329,228.80 is: 195,493,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,930,905.60 : 604,396,358.40 = 130,329,228.80 : x
  2. Step 2: Convert to fraction form
    402,930,905.60/604,396,358.40 = 130,329,228.80/x
  3. Step 3: Cross multiply
    402,930,905.60x = 604,396,358.40 × 130,329,228.80
  4. Step 4: Simplify right side
    402,930,905.60x = 78,770,511,279,800,400
  5. Step 5: Solve for x
    x = 78,770,511,279,800,400/402,930,905.60
  6. Step 6: Final answer
    x = 195,493,843.20

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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.