Home / 20,225,139.60-30,337,709.40-13,422,694.80

Finding the Fourth Proportional to 20,225,139.60, 30,337,709.40 and 13,422,694.80

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Solution

The fourth proportional to 20,225,139.60, 30,337,709.40 and 13,422,694.80 is: 20,134,042.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225,139.60 : 30,337,709.40 = 13,422,694.80 : x
  2. Step 2: Convert to fraction form
    20,225,139.60/30,337,709.40 = 13,422,694.80/x
  3. Step 3: Cross multiply
    20,225,139.60x = 30,337,709.40 × 13,422,694.80
  4. Step 4: Simplify right side
    20,225,139.60x = 407,213,814,207,291.12
  5. Step 5: Solve for x
    x = 407,213,814,207,291.12/20,225,139.60
  6. Step 6: Final answer
    x = 20,134,042.20

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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.