Home / 20,206,547.91-30,328,984.17-12,506,902.05

Finding the Fourth Proportional to 20,206,547.91, 30,328,984.17 and 12,506,902.05

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Solution

The fourth proportional to 20,206,547.91, 30,328,984.17 and 12,506,902.05 is: 18,772,213.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206,547.91 : 30,328,984.17 = 12,506,902.05 : x
  2. Step 2: Convert to fraction form
    20,206,547.91/30,328,984.17 = 12,506,902.05/x
  3. Step 3: Cross multiply
    20,206,547.91x = 30,328,984.17 × 12,506,902.05
  4. Step 4: Simplify right side
    20,206,547.91x = 379,321,634,290,190.56
  5. Step 5: Solve for x
    x = 379,321,634,290,190.56/20,206,547.91
  6. Step 6: Final answer
    x = 18,772,213.64

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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.