Home / 12,178,569.82-16,792,961.11-7,761,301.41

Finding the Fourth Proportional to 12,178,569.82, 16,792,961.11 and 7,761,301.41

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Solution

The fourth proportional to 12,178,569.82, 16,792,961.11 and 7,761,301.41 is: 10,702,014.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178,569.82 : 16,792,961.11 = 7,761,301.41 : x
  2. Step 2: Convert to fraction form
    12,178,569.82/16,792,961.11 = 7,761,301.41/x
  3. Step 3: Cross multiply
    12,178,569.82x = 16,792,961.11 × 7,761,301.41
  4. Step 4: Simplify right side
    12,178,569.82x = 130,335,232,741,118.16
  5. Step 5: Solve for x
    x = 130,335,232,741,118.16/12,178,569.82
  6. Step 6: Final answer
    x = 10,702,014.66

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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.