Home / 18,381,898.40-25,350,506.16-11,507,007.20

Finding the Fourth Proportional to 18,381,898.40, 25,350,506.16 and 11,507,007.20

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Solution

The fourth proportional to 18,381,898.40, 25,350,506.16 and 11,507,007.20 is: 15,869,332.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381,898.40 : 25,350,506.16 = 11,507,007.20 : x
  2. Step 2: Convert to fraction form
    18,381,898.40/25,350,506.16 = 11,507,007.20/x
  3. Step 3: Cross multiply
    18,381,898.40x = 25,350,506.16 × 11,507,007.20
  4. Step 4: Simplify right side
    18,381,898.40x = 291,708,456,906,764.31
  5. Step 5: Solve for x
    x = 291,708,456,906,764.31/18,381,898.40
  6. Step 6: Final answer
    x = 15,869,332.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.