Home / 8,287,665.71-12,431,387.82-2,139,668.36

Finding the Fourth Proportional to 8,287,665.71, 12,431,387.82 and 2,139,668.36

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Solution

The fourth proportional to 8,287,665.71, 12,431,387.82 and 2,139,668.36 is: 3,209,473.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,287,665.71 : 12,431,387.82 = 2,139,668.36 : x
  2. Step 2: Convert to fraction form
    8,287,665.71/12,431,387.82 = 2,139,668.36/x
  3. Step 3: Cross multiply
    8,287,665.71x = 12,431,387.82 × 2,139,668.36
  4. Step 4: Simplify right side
    8,287,665.71x = 26,599,047,181,827.90
  5. Step 5: Solve for x
    x = 26,599,047,181,827.90/8,287,665.71
  6. Step 6: Final answer
    x = 3,209,473.95

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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.