Home / 78,888,531.02-108,876,987.58-45,397,321.80

Finding the Fourth Proportional to 78,888,531.02, 108,876,987.58 and 45,397,321.80

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Solution

The fourth proportional to 78,888,531.02, 108,876,987.58 and 45,397,321.80 is: 62,654,527.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,888,531.02 : 108,876,987.58 = 45,397,321.80 : x
  2. Step 2: Convert to fraction form
    78,888,531.02/108,876,987.58 = 45,397,321.80/x
  3. Step 3: Cross multiply
    78,888,531.02x = 108,876,987.58 × 45,397,321.80
  4. Step 4: Simplify right side
    78,888,531.02x = 4,942,723,641,681,910
  5. Step 5: Solve for x
    x = 4,942,723,641,681,910/78,888,531.02
  6. Step 6: Final answer
    x = 62,654,527.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.