Home / 138,701,998.62-191,411,850.96-79,162,100.46

Finding the Fourth Proportional to 138,701,998.62, 191,411,850.96 and 79,162,100.46

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Solution

The fourth proportional to 138,701,998.62, 191,411,850.96 and 79,162,100.46 is: 109,245,463.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,701,998.62 : 191,411,850.96 = 79,162,100.46 : x
  2. Step 2: Convert to fraction form
    138,701,998.62/191,411,850.96 = 79,162,100.46/x
  3. Step 3: Cross multiply
    138,701,998.62x = 191,411,850.96 × 79,162,100.46
  4. Step 4: Simplify right side
    138,701,998.62x = 15,152,564,174,930,066
  5. Step 5: Solve for x
    x = 15,152,564,174,930,066/138,701,998.62
  6. Step 6: Final answer
    x = 109,245,463.84

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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.