Home / 18,138,502.80-27,237,245.40-13,124,998.80

Finding the Fourth Proportional to 18,138,502.80, 27,237,245.40 and 13,124,998.80

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Solution

The fourth proportional to 18,138,502.80, 27,237,245.40 and 13,124,998.80 is: 19,708,838.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138,502.80 : 27,237,245.40 = 13,124,998.80 : x
  2. Step 2: Convert to fraction form
    18,138,502.80/27,237,245.40 = 13,124,998.80/x
  3. Step 3: Cross multiply
    18,138,502.80x = 27,237,245.40 × 13,124,998.80
  4. Step 4: Simplify right side
    18,138,502.80x = 357,488,813,190,305.50
  5. Step 5: Solve for x
    x = 357,488,813,190,305.50/18,138,502.80
  6. Step 6: Final answer
    x = 19,708,838.00

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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.