Home / 99,643,708.20-149,465,562.30-45,895,996.20

Finding the Fourth Proportional to 99,643,708.20, 149,465,562.30 and 45,895,996.20

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Solution

The fourth proportional to 99,643,708.20, 149,465,562.30 and 45,895,996.20 is: 68,843,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,643,708.20 : 149,465,562.30 = 45,895,996.20 : x
  2. Step 2: Convert to fraction form
    99,643,708.20/149,465,562.30 = 45,895,996.20/x
  3. Step 3: Cross multiply
    99,643,708.20x = 149,465,562.30 × 45,895,996.20
  4. Step 4: Simplify right side
    99,643,708.20x = 6,859,870,879,351,664
  5. Step 5: Solve for x
    x = 6,859,870,879,351,664/99,643,708.20
  6. Step 6: Final answer
    x = 68,843,994.30

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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.