Home / 129,027,349.60-193,541,024.40-77,967,023.20

Finding the Fourth Proportional to 129,027,349.60, 193,541,024.40 and 77,967,023.20

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Solution

The fourth proportional to 129,027,349.60, 193,541,024.40 and 77,967,023.20 is: 116,950,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,027,349.60 : 193,541,024.40 = 77,967,023.20 : x
  2. Step 2: Convert to fraction form
    129,027,349.60/193,541,024.40 = 77,967,023.20/x
  3. Step 3: Cross multiply
    129,027,349.60x = 193,541,024.40 × 77,967,023.20
  4. Step 4: Simplify right side
    129,027,349.60x = 15,089,817,539,546,568
  5. Step 5: Solve for x
    x = 15,089,817,539,546,568/129,027,349.60
  6. Step 6: Final answer
    x = 116,950,534.80

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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.