Home / 18,138,503.30-27,237,246.15-13,124,999.30

Finding the Fourth Proportional to 18,138,503.30, 27,237,246.15 and 13,124,999.30

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Solution

The fourth proportional to 18,138,503.30, 27,237,246.15 and 13,124,999.30 is: 19,708,838.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138,503.30 : 27,237,246.15 = 13,124,999.30 : x
  2. Step 2: Convert to fraction form
    18,138,503.30/27,237,246.15 = 13,124,999.30/x
  3. Step 3: Cross multiply
    18,138,503.30x = 27,237,246.15 × 13,124,999.30
  4. Step 4: Simplify right side
    18,138,503.30x = 357,488,836,652,677.69
  5. Step 5: Solve for x
    x = 357,488,836,652,677.69/18,138,503.30
  6. Step 6: Final answer
    x = 19,708,838.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.