Home / 20,432,713.65-30,633,816.15-12,343,984.80

Finding the Fourth Proportional to 20,432,713.65, 30,633,816.15 and 12,343,984.80

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Solution

The fourth proportional to 20,432,713.65, 30,633,816.15 and 12,343,984.80 is: 18,506,761.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,432,713.65 : 30,633,816.15 = 12,343,984.80 : x
  2. Step 2: Convert to fraction form
    20,432,713.65/30,633,816.15 = 12,343,984.80/x
  3. Step 3: Cross multiply
    20,432,713.65x = 30,633,816.15 × 12,343,984.80
  4. Step 4: Simplify right side
    20,432,713.65x = 378,143,360,921,594.50
  5. Step 5: Solve for x
    x = 378,143,360,921,594.50/20,432,713.65
  6. Step 6: Final answer
    x = 18,506,761.63

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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.