Home / 87,013,812,516.87-120,079,067,047.65-48,431,904,407.70

Finding the Fourth Proportional to 87,013,812,516.87, 120,079,067,047.65 and 48,431,904,407.70

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Solution

The fourth proportional to 87,013,812,516.87, 120,079,067,047.65 and 48,431,904,407.70 is: 66,836,031,296.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,013,812,516.87 : 120,079,067,047.65 = 48,431,904,407.70 : x
  2. Step 2: Convert to fraction form
    87,013,812,516.87/120,079,067,047.65 = 48,431,904,407.70/x
  3. Step 3: Cross multiply
    87,013,812,516.87x = 120,079,067,047.65 × 48,431,904,407.70
  4. Step 4: Simplify right side
    87,013,812,516.87x = 5,815,657,896,617,582,788,608
  5. Step 5: Solve for x
    x = 5,815,657,896,617,582,788,608/87,013,812,516.87
  6. Step 6: Final answer
    x = 66,836,031,296.64

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1.5x scale

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.