Home / 138,610,964.34-191,293,754.40-79,073,571.33

Finding the Fourth Proportional to 138,610,964.34, 191,293,754.40 and 79,073,571.33

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Solution

The fourth proportional to 138,610,964.34, 191,293,754.40 and 79,073,571.33 is: 109,127,588.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,610,964.34 : 191,293,754.40 = 79,073,571.33 : x
  2. Step 2: Convert to fraction form
    138,610,964.34/191,293,754.40 = 79,073,571.33/x
  3. Step 3: Cross multiply
    138,610,964.34x = 191,293,754.40 × 79,073,571.33
  4. Step 4: Simplify right side
    138,610,964.34x = 15,126,280,333,531,902
  5. Step 5: Solve for x
    x = 15,126,280,333,531,902/138,610,964.34
  6. Step 6: Final answer
    x = 109,127,588.90

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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.