Home / 18,145,261.20-27,217,891.80-13,666,285.20

Finding the Fourth Proportional to 18,145,261.20, 27,217,891.80 and 13,666,285.20

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Solution

The fourth proportional to 18,145,261.20, 27,217,891.80 and 13,666,285.20 is: 20,499,427.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,261.20 : 27,217,891.80 = 13,666,285.20 : x
  2. Step 2: Convert to fraction form
    18,145,261.20/27,217,891.80 = 13,666,285.20/x
  3. Step 3: Cross multiply
    18,145,261.20x = 27,217,891.80 × 13,666,285.20
  4. Step 4: Simplify right side
    18,145,261.20x = 371,967,471,881,541.38
  5. Step 5: Solve for x
    x = 371,967,471,881,541.38/18,145,261.20
  6. Step 6: Final answer
    x = 20,499,427.80

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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.