Home / 86,916,187.20-130,390,027.20-43,676,572.80

Finding the Fourth Proportional to 86,916,187.20, 130,390,027.20 and 43,676,572.80

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Solution

The fourth proportional to 86,916,187.20, 130,390,027.20 and 43,676,572.80 is: 65,522,771.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,916,187.20 : 130,390,027.20 = 43,676,572.80 : x
  2. Step 2: Convert to fraction form
    86,916,187.20/130,390,027.20 = 43,676,572.80/x
  3. Step 3: Cross multiply
    86,916,187.20x = 130,390,027.20 × 43,676,572.80
  4. Step 4: Simplify right side
    86,916,187.20x = 5,694,989,515,394,780
  5. Step 5: Solve for x
    x = 5,694,989,515,394,780/86,916,187.20
  6. Step 6: Final answer
    x = 65,522,771.98

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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.