Home / 20,221,406.60-30,332,109.90-13,418,961.80

Finding the Fourth Proportional to 20,221,406.60, 30,332,109.90 and 13,418,961.80

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Solution

The fourth proportional to 20,221,406.60, 30,332,109.90 and 13,418,961.80 is: 20,128,442.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221,406.60 : 30,332,109.90 = 13,418,961.80 : x
  2. Step 2: Convert to fraction form
    20,221,406.60/30,332,109.90 = 13,418,961.80/x
  3. Step 3: Cross multiply
    20,221,406.60x = 30,332,109.90 × 13,418,961.80
  4. Step 4: Simplify right side
    20,221,406.60x = 407,025,424,061,501.81
  5. Step 5: Solve for x
    x = 407,025,424,061,501.81/20,221,406.60
  6. Step 6: Final answer
    x = 20,128,442.70

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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.