Home / 216,646,286.38-298,971,875.20-123,828,787.13

Finding the Fourth Proportional to 216,646,286.38, 298,971,875.20 and 123,828,787.13

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Solution

The fourth proportional to 216,646,286.38, 298,971,875.20 and 123,828,787.13 is: 170,883,726.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,646,286.38 : 298,971,875.20 = 123,828,787.13 : x
  2. Step 2: Convert to fraction form
    216,646,286.38/298,971,875.20 = 123,828,787.13/x
  3. Step 3: Cross multiply
    216,646,286.38x = 298,971,875.20 × 123,828,787.13
  4. Step 4: Simplify right side
    216,646,286.38x = 37,021,324,691,997,720
  5. Step 5: Solve for x
    x = 37,021,324,691,997,720/216,646,286.38
  6. Step 6: Final answer
    x = 170,883,726.24

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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.