Home / 12,888,172.52-17,785,543.30-9,595,190.69

Finding the Fourth Proportional to 12,888,172.52, 17,785,543.30 and 9,595,190.69

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Solution

The fourth proportional to 12,888,172.52, 17,785,543.30 and 9,595,190.69 is: 13,241,262.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888,172.52 : 17,785,543.30 = 9,595,190.69 : x
  2. Step 2: Convert to fraction form
    12,888,172.52/17,785,543.30 = 9,595,190.69/x
  3. Step 3: Cross multiply
    12,888,172.52x = 17,785,543.30 × 9,595,190.69
  4. Step 4: Simplify right side
    12,888,172.52x = 170,655,679,375,836.19
  5. Step 5: Solve for x
    x = 170,655,679,375,836.19/12,888,172.52
  6. Step 6: Final answer
    x = 13,241,262.81

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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.