Home / 68,129,169,513.30-102,197,363,344.35-20,998,015,011.54

Finding the Fourth Proportional to 68,129,169,513.30, 102,197,363,344.35 and 20,998,015,011.54

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Solution

The fourth proportional to 68,129,169,513.30, 102,197,363,344.35 and 20,998,015,011.54 is: 31,498,134,866.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,129,169,513.30 : 102,197,363,344.35 = 20,998,015,011.54 : x
  2. Step 2: Convert to fraction form
    68,129,169,513.30/102,197,363,344.35 = 20,998,015,011.54/x
  3. Step 3: Cross multiply
    68,129,169,513.30x = 102,197,363,344.35 × 20,998,015,011.54
  4. Step 4: Simplify right side
    68,129,169,513.30x = 2,145,941,769,644,469,387,264
  5. Step 5: Solve for x
    x = 2,145,941,769,644,469,387,264/68,129,169,513.30
  6. Step 6: Final answer
    x = 31,498,134,866.09

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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.