Home / 68,728,600.80-103,092,901.20-38,117,599.20

Finding the Fourth Proportional to 68,728,600.80, 103,092,901.20 and 38,117,599.20

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Solution

The fourth proportional to 68,728,600.80, 103,092,901.20 and 38,117,599.20 is: 57,176,398.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,728,600.80 : 103,092,901.20 = 38,117,599.20 : x
  2. Step 2: Convert to fraction form
    68,728,600.80/103,092,901.20 = 38,117,599.20/x
  3. Step 3: Cross multiply
    68,728,600.80x = 103,092,901.20 × 38,117,599.20
  4. Step 4: Simplify right side
    68,728,600.80x = 3,929,653,888,306,799.50
  5. Step 5: Solve for x
    x = 3,929,653,888,306,799.50/68,728,600.80
  6. Step 6: Final answer
    x = 57,176,398.80

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Similar ratio
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1.5x scale

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.