Home / 12,961,819.80-19,424,475.54-9,917,399.16

Finding the Fourth Proportional to 12,961,819.80, 19,424,475.54 and 9,917,399.16

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Solution

The fourth proportional to 12,961,819.80, 19,424,475.54 and 9,917,399.16 is: 14,862,132.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961,819.80 : 19,424,475.54 = 9,917,399.16 : x
  2. Step 2: Convert to fraction form
    12,961,819.80/19,424,475.54 = 9,917,399.16/x
  3. Step 3: Cross multiply
    12,961,819.80x = 19,424,475.54 × 9,917,399.16
  4. Step 4: Simplify right side
    12,961,819.80x = 192,640,277,403,836.53
  5. Step 5: Solve for x
    x = 192,640,277,403,836.53/12,961,819.80
  6. Step 6: Final answer
    x = 14,862,132.04

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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.