Home / 83,403,280.80-125,104,921.20-68,948,085.60

Finding the Fourth Proportional to 83,403,280.80, 125,104,921.20 and 68,948,085.60

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Solution

The fourth proportional to 83,403,280.80, 125,104,921.20 and 68,948,085.60 is: 103,422,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,403,280.80 : 125,104,921.20 = 68,948,085.60 : x
  2. Step 2: Convert to fraction form
    83,403,280.80/125,104,921.20 = 68,948,085.60/x
  3. Step 3: Cross multiply
    83,403,280.80x = 125,104,921.20 × 68,948,085.60
  4. Step 4: Simplify right side
    83,403,280.80x = 8,625,744,815,878,854
  5. Step 5: Solve for x
    x = 8,625,744,815,878,854/83,403,280.80
  6. Step 6: Final answer
    x = 103,422,128.40

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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.