Home / 87,641,860.13-120,949,328.15-48,482,961.74

Finding the Fourth Proportional to 87,641,860.13, 120,949,328.15 and 48,482,961.74

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Solution

The fourth proportional to 87,641,860.13, 120,949,328.15 and 48,482,961.74 is: 66,908,457.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,641,860.13 : 120,949,328.15 = 48,482,961.74 : x
  2. Step 2: Convert to fraction form
    87,641,860.13/120,949,328.15 = 48,482,961.74/x
  3. Step 3: Cross multiply
    87,641,860.13x = 120,949,328.15 × 48,482,961.74
  4. Step 4: Simplify right side
    87,641,860.13x = 5,863,981,648,327,993
  5. Step 5: Solve for x
    x = 5,863,981,648,327,993/87,641,860.13
  6. Step 6: Final answer
    x = 66,908,457.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.