Home / 79,231,351.20-118,847,026.80-54,572,488.80

Finding the Fourth Proportional to 79,231,351.20, 118,847,026.80 and 54,572,488.80

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Solution

The fourth proportional to 79,231,351.20, 118,847,026.80 and 54,572,488.80 is: 81,858,733.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,231,351.20 : 118,847,026.80 = 54,572,488.80 : x
  2. Step 2: Convert to fraction form
    79,231,351.20/118,847,026.80 = 54,572,488.80/x
  3. Step 3: Cross multiply
    79,231,351.20x = 118,847,026.80 × 54,572,488.80
  4. Step 4: Simplify right side
    79,231,351.20x = 6,485,778,038,956,299
  5. Step 5: Solve for x
    x = 6,485,778,038,956,299/79,231,351.20
  6. Step 6: Final answer
    x = 81,858,733.20

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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.