Home / 12,668,541.75-18,972,125.67-8,767,066.52

Finding the Fourth Proportional to 12,668,541.75, 18,972,125.67 and 8,767,066.52

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Solution

The fourth proportional to 12,668,541.75, 18,972,125.67 and 8,767,066.52 is: 13,129,363.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668,541.75 : 18,972,125.67 = 8,767,066.52 : x
  2. Step 2: Convert to fraction form
    12,668,541.75/18,972,125.67 = 8,767,066.52/x
  3. Step 3: Cross multiply
    12,668,541.75x = 18,972,125.67 × 8,767,066.52
  4. Step 4: Simplify right side
    12,668,541.75x = 166,329,887,854,996.38
  5. Step 5: Solve for x
    x = 166,329,887,854,996.38/12,668,541.75
  6. Step 6: Final answer
    x = 13,129,363.36

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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.