Home / 13,578,234.59-20,387,282.75-8,482,378.79

Finding the Fourth Proportional to 13,578,234.59, 20,387,282.75 and 8,482,378.79

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Solution

The fourth proportional to 13,578,234.59, 20,387,282.75 and 8,482,378.79 is: 12,736,019.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,234.59 : 20,387,282.75 = 8,482,378.79 : x
  2. Step 2: Convert to fraction form
    13,578,234.59/20,387,282.75 = 8,482,378.79/x
  3. Step 3: Cross multiply
    13,578,234.59x = 20,387,282.75 × 8,482,378.79
  4. Step 4: Simplify right side
    13,578,234.59x = 172,932,654,824,698.12
  5. Step 5: Solve for x
    x = 172,932,654,824,698.12/13,578,234.59
  6. Step 6: Final answer
    x = 12,736,019.08

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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.