Home / 86,015,934.30-129,023,901.45-25,431,660.30

Finding the Fourth Proportional to 86,015,934.30, 129,023,901.45 and 25,431,660.30

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Solution

The fourth proportional to 86,015,934.30, 129,023,901.45 and 25,431,660.30 is: 38,147,490.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,015,934.30 : 129,023,901.45 = 25,431,660.30 : x
  2. Step 2: Convert to fraction form
    86,015,934.30/129,023,901.45 = 25,431,660.30/x
  3. Step 3: Cross multiply
    86,015,934.30x = 129,023,901.45 × 25,431,660.30
  4. Step 4: Simplify right side
    86,015,934.30x = 3,281,292,032,257,077.50
  5. Step 5: Solve for x
    x = 3,281,292,032,257,077.50/86,015,934.30
  6. Step 6: Final answer
    x = 38,147,490.45

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Double scale
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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.