Home / 12,178,570.82-16,792,962.49-7,761,302.41

Finding the Fourth Proportional to 12,178,570.82, 16,792,962.49 and 7,761,302.41

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Solution

The fourth proportional to 12,178,570.82, 16,792,962.49 and 7,761,302.41 is: 10,702,016.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178,570.82 : 16,792,962.49 = 7,761,302.41 : x
  2. Step 2: Convert to fraction form
    12,178,570.82/16,792,962.49 = 7,761,302.41/x
  3. Step 3: Cross multiply
    12,178,570.82x = 16,792,962.49 × 7,761,302.41
  4. Step 4: Simplify right side
    12,178,570.82x = 130,335,260,244,676.59
  5. Step 5: Solve for x
    x = 130,335,260,244,676.59/12,178,570.82
  6. Step 6: Final answer
    x = 10,702,016.04

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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.