Home / 20,853,548.70-31,280,323.05-20,003,243.10

Finding the Fourth Proportional to 20,853,548.70, 31,280,323.05 and 20,003,243.10

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Solution

The fourth proportional to 20,853,548.70, 31,280,323.05 and 20,003,243.10 is: 30,004,864.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853,548.70 : 31,280,323.05 = 20,003,243.10 : x
  2. Step 2: Convert to fraction form
    20,853,548.70/31,280,323.05 = 20,003,243.10/x
  3. Step 3: Cross multiply
    20,853,548.70x = 31,280,323.05 × 20,003,243.10
  4. Step 4: Simplify right side
    20,853,548.70x = 625,707,906,215,683.50
  5. Step 5: Solve for x
    x = 625,707,906,215,683.50/20,853,548.70
  6. Step 6: Final answer
    x = 30,004,864.65

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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.