Home / 12,597,321.40-18,895,982.10-12,387,369.40

Finding the Fourth Proportional to 12,597,321.40, 18,895,982.10 and 12,387,369.40

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Solution

The fourth proportional to 12,597,321.40, 18,895,982.10 and 12,387,369.40 is: 18,581,054.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,597,321.40 : 18,895,982.10 = 12,387,369.40 : x
  2. Step 2: Convert to fraction form
    12,597,321.40/18,895,982.10 = 12,387,369.40/x
  3. Step 3: Cross multiply
    12,597,321.40x = 18,895,982.10 × 12,387,369.40
  4. Step 4: Simplify right side
    12,597,321.40x = 234,071,510,448,487.75
  5. Step 5: Solve for x
    x = 234,071,510,448,487.75/12,597,321.40
  6. Step 6: Final answer
    x = 18,581,054.10

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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.