Home / 12,781,371.44-17,638,203.12-6,980,155.04

Finding the Fourth Proportional to 12,781,371.44, 17,638,203.12 and 6,980,155.04

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Solution

The fourth proportional to 12,781,371.44, 17,638,203.12 and 6,980,155.04 is: 9,632,565.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,371.44 : 17,638,203.12 = 6,980,155.04 : x
  2. Step 2: Convert to fraction form
    12,781,371.44/17,638,203.12 = 6,980,155.04/x
  3. Step 3: Cross multiply
    12,781,371.44x = 17,638,203.12 × 6,980,155.04
  4. Step 4: Simplify right side
    12,781,371.44x = 123,117,392,404,611.73
  5. Step 5: Solve for x
    x = 123,117,392,404,611.73/12,781,371.44
  6. Step 6: Final answer
    x = 9,632,565.10

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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.