Home / 87,641,841.69-120,949,302.70-48,482,943.30

Finding the Fourth Proportional to 87,641,841.69, 120,949,302.70 and 48,482,943.30

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Solution

The fourth proportional to 87,641,841.69, 120,949,302.70 and 48,482,943.30 is: 66,908,431.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,641,841.69 : 120,949,302.70 = 48,482,943.30 : x
  2. Step 2: Convert to fraction form
    87,641,841.69/120,949,302.70 = 48,482,943.30/x
  3. Step 3: Cross multiply
    87,641,841.69x = 120,949,302.70 × 48,482,943.30
  4. Step 4: Simplify right side
    87,641,841.69x = 5,863,978,184,736,221
  5. Step 5: Solve for x
    x = 5,863,978,184,736,221/87,641,841.69
  6. Step 6: Final answer
    x = 66,908,431.77

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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.