Home / 87,405,287.60-131,107,931.40-71,249,481.20

Finding the Fourth Proportional to 87,405,287.60, 131,107,931.40 and 71,249,481.20

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Solution

The fourth proportional to 87,405,287.60, 131,107,931.40 and 71,249,481.20 is: 106,874,221.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,405,287.60 : 131,107,931.40 = 71,249,481.20 : x
  2. Step 2: Convert to fraction form
    87,405,287.60/131,107,931.40 = 71,249,481.20/x
  3. Step 3: Cross multiply
    87,405,287.60x = 131,107,931.40 × 71,249,481.20
  4. Step 4: Simplify right side
    87,405,287.60x = 9,341,372,093,455,190
  5. Step 5: Solve for x
    x = 9,341,372,093,455,190/87,405,287.60
  6. Step 6: Final answer
    x = 106,874,221.80

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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.