Home / 18,145,280.70-27,217,921.05-13,666,304.70

Finding the Fourth Proportional to 18,145,280.70, 27,217,921.05 and 13,666,304.70

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Solution

The fourth proportional to 18,145,280.70, 27,217,921.05 and 13,666,304.70 is: 20,499,457.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,280.70 : 27,217,921.05 = 13,666,304.70 : x
  2. Step 2: Convert to fraction form
    18,145,280.70/27,217,921.05 = 13,666,304.70/x
  3. Step 3: Cross multiply
    18,145,280.70x = 27,217,921.05 × 13,666,304.70
  4. Step 4: Simplify right side
    18,145,280.70x = 371,968,402,369,843.94
  5. Step 5: Solve for x
    x = 371,968,402,369,843.94/18,145,280.70
  6. Step 6: Final answer
    x = 20,499,457.05

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Double scale
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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.