Home / 68,129,169,508.80-102,197,363,337.60-20,998,015,007.04

Finding the Fourth Proportional to 68,129,169,508.80, 102,197,363,337.60 and 20,998,015,007.04

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Solution

The fourth proportional to 68,129,169,508.80, 102,197,363,337.60 and 20,998,015,007.04 is: 31,498,134,859.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,129,169,508.80 : 102,197,363,337.60 = 20,998,015,007.04 : x
  2. Step 2: Convert to fraction form
    68,129,169,508.80/102,197,363,337.60 = 20,998,015,007.04/x
  3. Step 3: Cross multiply
    68,129,169,508.80x = 102,197,363,337.60 × 20,998,015,007.04
  4. Step 4: Simplify right side
    68,129,169,508.80x = 2,145,941,769,042,844,450,816
  5. Step 5: Solve for x
    x = 2,145,941,769,042,844,450,816/68,129,169,508.80
  6. Step 6: Final answer
    x = 31,498,134,859.34

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1.5x scale

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.