Home / 87,641,846-120,949,308.65-48,482,947.61

Finding the Fourth Proportional to 87,641,846, 120,949,308.65 and 48,482,947.61

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Solution

The fourth proportional to 87,641,846, 120,949,308.65 and 48,482,947.61 is: 66,908,437.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,641,846 : 120,949,308.65 = 48,482,947.61 : x
  2. Step 2: Convert to fraction form
    87,641,846/120,949,308.65 = 48,482,947.61/x
  3. Step 3: Cross multiply
    87,641,846x = 120,949,308.65 × 48,482,947.61
  4. Step 4: Simplify right side
    87,641,846x = 5,863,978,994,743,670
  5. Step 5: Solve for x
    x = 5,863,978,994,743,670/87,641,846
  6. Step 6: Final answer
    x = 66,908,437.72

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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.