Home / 87,635,999.20-131,453,998.80-57,178,962.40

Finding the Fourth Proportional to 87,635,999.20, 131,453,998.80 and 57,178,962.40

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Solution

The fourth proportional to 87,635,999.20, 131,453,998.80 and 57,178,962.40 is: 85,768,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,635,999.20 : 131,453,998.80 = 57,178,962.40 : x
  2. Step 2: Convert to fraction form
    87,635,999.20/131,453,998.80 = 57,178,962.40/x
  3. Step 3: Cross multiply
    87,635,999.20x = 131,453,998.80 × 57,178,962.40
  4. Step 4: Simplify right side
    87,635,999.20x = 7,516,403,254,714,845
  5. Step 5: Solve for x
    x = 7,516,403,254,714,845/87,635,999.20
  6. Step 6: Final answer
    x = 85,768,443.60

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1.5x scale

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.