Home / 20,147,011.80-30,220,517.70-14,520,298.20

Finding the Fourth Proportional to 20,147,011.80, 30,220,517.70 and 14,520,298.20

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Solution

The fourth proportional to 20,147,011.80, 30,220,517.70 and 14,520,298.20 is: 21,780,447.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147,011.80 : 30,220,517.70 = 14,520,298.20 : x
  2. Step 2: Convert to fraction form
    20,147,011.80/30,220,517.70 = 14,520,298.20/x
  3. Step 3: Cross multiply
    20,147,011.80x = 30,220,517.70 × 14,520,298.20
  4. Step 4: Simplify right side
    20,147,011.80x = 438,810,928,762,378.12
  5. Step 5: Solve for x
    x = 438,810,928,762,378.12/20,147,011.80
  6. Step 6: Final answer
    x = 21,780,447.30

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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.