Home / 20,853,611.70-31,280,417.55-20,003,306.10

Finding the Fourth Proportional to 20,853,611.70, 31,280,417.55 and 20,003,306.10

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Solution

The fourth proportional to 20,853,611.70, 31,280,417.55 and 20,003,306.10 is: 30,004,959.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853,611.70 : 31,280,417.55 = 20,003,306.10 : x
  2. Step 2: Convert to fraction form
    20,853,611.70/31,280,417.55 = 20,003,306.10/x
  3. Step 3: Cross multiply
    20,853,611.70x = 31,280,417.55 × 20,003,306.10
  4. Step 4: Simplify right side
    20,853,611.70x = 625,711,767,188,462.12
  5. Step 5: Solve for x
    x = 625,711,767,188,462.12/20,853,611.70
  6. Step 6: Final answer
    x = 30,004,959.15

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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.