Home / 80,851,641.20-121,277,461.80-61,719,765.20

Finding the Fourth Proportional to 80,851,641.20, 121,277,461.80 and 61,719,765.20

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Solution

The fourth proportional to 80,851,641.20, 121,277,461.80 and 61,719,765.20 is: 92,579,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,851,641.20 : 121,277,461.80 = 61,719,765.20 : x
  2. Step 2: Convert to fraction form
    80,851,641.20/121,277,461.80 = 61,719,765.20/x
  3. Step 3: Cross multiply
    80,851,641.20x = 121,277,461.80 × 61,719,765.20
  4. Step 4: Simplify right side
    80,851,641.20x = 7,485,216,466,347,970
  5. Step 5: Solve for x
    x = 7,485,216,466,347,970/80,851,641.20
  6. Step 6: Final answer
    x = 92,579,647.80

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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.