Home / 99,694,952.40-149,542,428.60-54,345,320.40

Finding the Fourth Proportional to 99,694,952.40, 149,542,428.60 and 54,345,320.40

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Solution

The fourth proportional to 99,694,952.40, 149,542,428.60 and 54,345,320.40 is: 81,517,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,694,952.40 : 149,542,428.60 = 54,345,320.40 : x
  2. Step 2: Convert to fraction form
    99,694,952.40/149,542,428.60 = 54,345,320.40/x
  3. Step 3: Cross multiply
    99,694,952.40x = 149,542,428.60 × 54,345,320.40
  4. Step 4: Simplify right side
    99,694,952.40x = 8,126,931,195,661,123
  5. Step 5: Solve for x
    x = 8,126,931,195,661,123/99,694,952.40
  6. Step 6: Final answer
    x = 81,517,980.60

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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.