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Finding the Fourth Proportional to 80,873,200.80, 121,342,978.80 and 29,779,696.80

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Solution

The fourth proportional to 80,873,200.80, 121,342,978.80 and 29,779,696.80 is: 44,681,762.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,873,200.80 : 121,342,978.80 = 29,779,696.80 : x
  2. Step 2: Convert to fraction form
    80,873,200.80/121,342,978.80 = 29,779,696.80/x
  3. Step 3: Cross multiply
    80,873,200.80x = 121,342,978.80 × 29,779,696.80
  4. Step 4: Simplify right side
    80,873,200.80x = 3,613,557,117,472,828
  5. Step 5: Solve for x
    x = 3,613,557,117,472,828/80,873,200.80
  6. Step 6: Final answer
    x = 44,681,762.09

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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.