Home / 99,906,997.76-137,874,685.92-55,855,852.64

Finding the Fourth Proportional to 99,906,997.76, 137,874,685.92 and 55,855,852.64

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Solution

The fourth proportional to 99,906,997.76, 137,874,685.92 and 55,855,852.64 is: 77,082,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,906,997.76 : 137,874,685.92 = 55,855,852.64 : x
  2. Step 2: Convert to fraction form
    99,906,997.76/137,874,685.92 = 55,855,852.64/x
  3. Step 3: Cross multiply
    99,906,997.76x = 137,874,685.92 × 55,855,852.64
  4. Step 4: Simplify right side
    99,906,997.76x = 7,701,108,139,533,802
  5. Step 5: Solve for x
    x = 7,701,108,139,533,802/99,906,997.76
  6. Step 6: Final answer
    x = 77,082,770.10

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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.