Home / 8,478,034.10-12,717,051.15-8,147,359.70

Finding the Fourth Proportional to 8,478,034.10, 12,717,051.15 and 8,147,359.70

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Solution

The fourth proportional to 8,478,034.10, 12,717,051.15 and 8,147,359.70 is: 12,221,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478,034.10 : 12,717,051.15 = 8,147,359.70 : x
  2. Step 2: Convert to fraction form
    8,478,034.10/12,717,051.15 = 8,147,359.70/x
  3. Step 3: Cross multiply
    8,478,034.10x = 12,717,051.15 × 8,147,359.70
  4. Step 4: Simplify right side
    8,478,034.10x = 103,610,390,042,348.66
  5. Step 5: Solve for x
    x = 103,610,390,042,348.66/8,478,034.10
  6. Step 6: Final answer
    x = 12,221,039.55

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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.