Home / 12,420,898.39-18,633,369.80-3,668,062.31

Finding the Fourth Proportional to 12,420,898.39, 18,633,369.80 and 3,668,062.31

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Solution

The fourth proportional to 12,420,898.39, 18,633,369.80 and 3,668,062.31 is: 5,502,690.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,420,898.39 : 18,633,369.80 = 3,668,062.31 : x
  2. Step 2: Convert to fraction form
    12,420,898.39/18,633,369.80 = 3,668,062.31/x
  3. Step 3: Cross multiply
    12,420,898.39x = 18,633,369.80 × 3,668,062.31
  4. Step 4: Simplify right side
    12,420,898.39x = 68,348,361,471,672.24
  5. Step 5: Solve for x
    x = 68,348,361,471,672.24/12,420,898.39
  6. Step 6: Final answer
    x = 5,502,690.65

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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.