Home / 79,761,026.80-119,641,540.20-68,281,901.20

Finding the Fourth Proportional to 79,761,026.80, 119,641,540.20 and 68,281,901.20

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Solution

The fourth proportional to 79,761,026.80, 119,641,540.20 and 68,281,901.20 is: 102,422,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,761,026.80 : 119,641,540.20 = 68,281,901.20 : x
  2. Step 2: Convert to fraction form
    79,761,026.80/119,641,540.20 = 68,281,901.20/x
  3. Step 3: Cross multiply
    79,761,026.80x = 119,641,540.20 × 68,281,901.20
  4. Step 4: Simplify right side
    79,761,026.80x = 8,169,351,827,352,229
  5. Step 5: Solve for x
    x = 8,169,351,827,352,229/79,761,026.80
  6. Step 6: Final answer
    x = 102,422,851.80

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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.