Home / 87,659,435.60-131,489,153.40-85,140,011.60

Finding the Fourth Proportional to 87,659,435.60, 131,489,153.40 and 85,140,011.60

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Solution

The fourth proportional to 87,659,435.60, 131,489,153.40 and 85,140,011.60 is: 127,710,017.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,659,435.60 : 131,489,153.40 = 85,140,011.60 : x
  2. Step 2: Convert to fraction form
    87,659,435.60/131,489,153.40 = 85,140,011.60/x
  3. Step 3: Cross multiply
    87,659,435.60x = 131,489,153.40 × 85,140,011.60
  4. Step 4: Simplify right side
    87,659,435.60x = 11,194,988,045,750,180
  5. Step 5: Solve for x
    x = 11,194,988,045,750,180/87,659,435.60
  6. Step 6: Final answer
    x = 127,710,017.40

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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.