Home / 20,659,200.30-30,988,800.45-18,427,148.10

Finding the Fourth Proportional to 20,659,200.30, 30,988,800.45 and 18,427,148.10

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Solution

The fourth proportional to 20,659,200.30, 30,988,800.45 and 18,427,148.10 is: 27,640,722.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659,200.30 : 30,988,800.45 = 18,427,148.10 : x
  2. Step 2: Convert to fraction form
    20,659,200.30/30,988,800.45 = 18,427,148.10/x
  3. Step 3: Cross multiply
    20,659,200.30x = 30,988,800.45 × 18,427,148.10
  4. Step 4: Simplify right side
    20,659,200.30x = 571,035,215,333,496.62
  5. Step 5: Solve for x
    x = 571,035,215,333,496.62/20,659,200.30
  6. Step 6: Final answer
    x = 27,640,722.15

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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.