Home / 138,808,218.89-206,971,346.17-134,994,548.45

Finding the Fourth Proportional to 138,808,218.89, 206,971,346.17 and 134,994,548.45

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Solution

The fourth proportional to 138,808,218.89, 206,971,346.17 and 134,994,548.45 is: 201,284,935.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,808,218.89 : 206,971,346.17 = 134,994,548.45 : x
  2. Step 2: Convert to fraction form
    138,808,218.89/206,971,346.17 = 134,994,548.45/x
  3. Step 3: Cross multiply
    138,808,218.89x = 206,971,346.17 × 134,994,548.45
  4. Step 4: Simplify right side
    138,808,218.89x = 27,940,003,417,272,928
  5. Step 5: Solve for x
    x = 27,940,003,417,272,928/138,808,218.89
  6. Step 6: Final answer
    x = 201,284,935.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.