Home / 20,157,555.60-30,240,221.40-8,642,854.80

Finding the Fourth Proportional to 20,157,555.60, 30,240,221.40 and 8,642,854.80

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Solution

The fourth proportional to 20,157,555.60, 30,240,221.40 and 8,642,854.80 is: 12,965,949.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,555.60 : 30,240,221.40 = 8,642,854.80 : x
  2. Step 2: Convert to fraction form
    20,157,555.60/30,240,221.40 = 8,642,854.80/x
  3. Step 3: Cross multiply
    20,157,555.60x = 30,240,221.40 × 8,642,854.80
  4. Step 4: Simplify right side
    20,157,555.60x = 261,361,842,680,052.72
  5. Step 5: Solve for x
    x = 261,361,842,680,052.72/20,157,555.60
  6. Step 6: Final answer
    x = 12,965,949.24

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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.