Home / 20,683,641.40-31,025,462.10-10,479,974.20

Finding the Fourth Proportional to 20,683,641.40, 31,025,462.10 and 10,479,974.20

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Solution

The fourth proportional to 20,683,641.40, 31,025,462.10 and 10,479,974.20 is: 15,719,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683,641.40 : 31,025,462.10 = 10,479,974.20 : x
  2. Step 2: Convert to fraction form
    20,683,641.40/31,025,462.10 = 10,479,974.20/x
  3. Step 3: Cross multiply
    20,683,641.40x = 31,025,462.10 × 10,479,974.20
  4. Step 4: Simplify right side
    20,683,641.40x = 325,146,042,351,077.81
  5. Step 5: Solve for x
    x = 325,146,042,351,077.81/20,683,641.40
  6. Step 6: Final answer
    x = 15,719,961.30

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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.