Home / 80,751,347.80-121,127,021.70-74,515,773.40

Finding the Fourth Proportional to 80,751,347.80, 121,127,021.70 and 74,515,773.40

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Solution

The fourth proportional to 80,751,347.80, 121,127,021.70 and 74,515,773.40 is: 111,773,660.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,751,347.80 : 121,127,021.70 = 74,515,773.40 : x
  2. Step 2: Convert to fraction form
    80,751,347.80/121,127,021.70 = 74,515,773.40/x
  3. Step 3: Cross multiply
    80,751,347.80x = 121,127,021.70 × 74,515,773.40
  4. Step 4: Simplify right side
    80,751,347.80x = 9,025,873,701,614,084
  5. Step 5: Solve for x
    x = 9,025,873,701,614,084/80,751,347.80
  6. Step 6: Final answer
    x = 111,773,660.10

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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.