Home / 80,661,804.10-120,992,706.15-66,490,044.10

Finding the Fourth Proportional to 80,661,804.10, 120,992,706.15 and 66,490,044.10

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Solution

The fourth proportional to 80,661,804.10, 120,992,706.15 and 66,490,044.10 is: 99,735,066.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,661,804.10 : 120,992,706.15 = 66,490,044.10 : x
  2. Step 2: Convert to fraction form
    80,661,804.10/120,992,706.15 = 66,490,044.10/x
  3. Step 3: Cross multiply
    80,661,804.10x = 120,992,706.15 × 66,490,044.10
  4. Step 4: Simplify right side
    80,661,804.10x = 8,044,810,367,691,842
  5. Step 5: Solve for x
    x = 8,044,810,367,691,842/80,661,804.10
  6. Step 6: Final answer
    x = 99,735,066.15

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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.