Home / 20,486,041.10-30,729,061.65-19,541,257.10

Finding the Fourth Proportional to 20,486,041.10, 30,729,061.65 and 19,541,257.10

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Solution

The fourth proportional to 20,486,041.10, 30,729,061.65 and 19,541,257.10 is: 29,311,885.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,486,041.10 : 30,729,061.65 = 19,541,257.10 : x
  2. Step 2: Convert to fraction form
    20,486,041.10/30,729,061.65 = 19,541,257.10/x
  3. Step 3: Cross multiply
    20,486,041.10x = 30,729,061.65 × 19,541,257.10
  4. Step 4: Simplify right side
    20,486,041.10x = 600,484,494,144,400.25
  5. Step 5: Solve for x
    x = 600,484,494,144,400.25/20,486,041.10
  6. Step 6: Final answer
    x = 29,311,885.65

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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.