Home / 8,536,648.40-12,780,089.40-8,287,816.40

Finding the Fourth Proportional to 8,536,648.40, 12,780,089.40 and 8,287,816.40

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Solution

The fourth proportional to 8,536,648.40, 12,780,089.40 and 8,287,816.40 is: 12,407,566.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,536,648.40 : 12,780,089.40 = 8,287,816.40 : x
  2. Step 2: Convert to fraction form
    8,536,648.40/12,780,089.40 = 8,287,816.40/x
  3. Step 3: Cross multiply
    8,536,648.40x = 12,780,089.40 × 8,287,816.40
  4. Step 4: Simplify right side
    8,536,648.40x = 105,919,034,522,786.17
  5. Step 5: Solve for x
    x = 105,919,034,522,786.17/8,536,648.40
  6. Step 6: Final answer
    x = 12,407,566.71

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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.