Home / 18,145,417.20-27,218,125.80-13,666,441.20

Finding the Fourth Proportional to 18,145,417.20, 27,218,125.80 and 13,666,441.20

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Solution

The fourth proportional to 18,145,417.20, 27,218,125.80 and 13,666,441.20 is: 20,499,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,417.20 : 27,218,125.80 = 13,666,441.20 : x
  2. Step 2: Convert to fraction form
    18,145,417.20/27,218,125.80 = 13,666,441.20/x
  3. Step 3: Cross multiply
    18,145,417.20x = 27,218,125.80 × 13,666,441.20
  4. Step 4: Simplify right side
    18,145,417.20x = 371,974,915,819,902.94
  5. Step 5: Solve for x
    x = 371,974,915,819,902.94/18,145,417.20
  6. Step 6: Final answer
    x = 20,499,661.80

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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.