Home / 12,912,254.62-17,818,696.08-7,111,576.12

Finding the Fourth Proportional to 12,912,254.62, 17,818,696.08 and 7,111,576.12

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Solution

The fourth proportional to 12,912,254.62, 17,818,696.08 and 7,111,576.12 is: 9,813,856.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912,254.62 : 17,818,696.08 = 7,111,576.12 : x
  2. Step 2: Convert to fraction form
    12,912,254.62/17,818,696.08 = 7,111,576.12/x
  3. Step 3: Cross multiply
    12,912,254.62x = 17,818,696.08 × 7,111,576.12
  4. Step 4: Simplify right side
    12,912,254.62x = 126,719,013,532,065.59
  5. Step 5: Solve for x
    x = 126,719,013,532,065.59/12,912,254.62
  6. Step 6: Final answer
    x = 9,813,856.47

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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.