Home / 99,814,616.10-149,710,864.95-81,832,356.90

Finding the Fourth Proportional to 99,814,616.10, 149,710,864.95 and 81,832,356.90

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Solution

The fourth proportional to 99,814,616.10, 149,710,864.95 and 81,832,356.90 is: 122,739,468.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,814,616.10 : 149,710,864.95 = 81,832,356.90 : x
  2. Step 2: Convert to fraction form
    99,814,616.10/149,710,864.95 = 81,832,356.90/x
  3. Step 3: Cross multiply
    99,814,616.10x = 149,710,864.95 × 81,832,356.90
  4. Step 4: Simplify right side
    99,814,616.10x = 12,251,192,932,396,100
  5. Step 5: Solve for x
    x = 12,251,192,932,396,100/99,814,616.10
  6. Step 6: Final answer
    x = 122,739,468.54

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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.