Home / 18,144,666.45-27,216,999.68-13,665,690.45

Finding the Fourth Proportional to 18,144,666.45, 27,216,999.68 and 13,665,690.45

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Solution

The fourth proportional to 18,144,666.45, 27,216,999.68 and 13,665,690.45 is: 20,498,535.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144,666.45 : 27,216,999.68 = 13,665,690.45 : x
  2. Step 2: Convert to fraction form
    18,144,666.45/27,216,999.68 = 13,665,690.45/x
  3. Step 3: Cross multiply
    18,144,666.45x = 27,216,999.68 × 13,665,690.45
  4. Step 4: Simplify right side
    18,144,666.45x = 371,939,092,536,300.56
  5. Step 5: Solve for x
    x = 371,939,092,536,300.56/18,144,666.45
  6. Step 6: Final answer
    x = 20,498,535.68

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Similar ratio
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1.5x scale

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.