Home / 12,116,920.62-16,721,430.78-6,610,382.64

Finding the Fourth Proportional to 12,116,920.62, 16,721,430.78 and 6,610,382.64

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Solution

The fourth proportional to 12,116,920.62, 16,721,430.78 and 6,610,382.64 is: 9,122,371.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116,920.62 : 16,721,430.78 = 6,610,382.64 : x
  2. Step 2: Convert to fraction form
    12,116,920.62/16,721,430.78 = 6,610,382.64/x
  3. Step 3: Cross multiply
    12,116,920.62x = 16,721,430.78 × 6,610,382.64
  4. Step 4: Simplify right side
    12,116,920.62x = 110,535,055,744,073.66
  5. Step 5: Solve for x
    x = 110,535,055,744,073.66/12,116,920.62
  6. Step 6: Final answer
    x = 9,122,371.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.