Home / 87,641,841-120,949,301.75-48,482,942.61

Finding the Fourth Proportional to 87,641,841, 120,949,301.75 and 48,482,942.61

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Solution

The fourth proportional to 87,641,841, 120,949,301.75 and 48,482,942.61 is: 66,908,430.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,641,841 : 120,949,301.75 = 48,482,942.61 : x
  2. Step 2: Convert to fraction form
    87,641,841/120,949,301.75 = 48,482,942.61/x
  3. Step 3: Cross multiply
    87,641,841x = 120,949,301.75 × 48,482,942.61
  4. Step 4: Simplify right side
    87,641,841x = 5,863,978,055,222,408
  5. Step 5: Solve for x
    x = 5,863,978,055,222,408/87,641,841
  6. Step 6: Final answer
    x = 66,908,430.82

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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.