Home / 12,812,568.49-17,681,342.86-7,011,348.70

Finding the Fourth Proportional to 12,812,568.49, 17,681,342.86 and 7,011,348.70

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Solution

The fourth proportional to 12,812,568.49, 17,681,342.86 and 7,011,348.70 is: 9,675,660.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812,568.49 : 17,681,342.86 = 7,011,348.70 : x
  2. Step 2: Convert to fraction form
    12,812,568.49/17,681,342.86 = 7,011,348.70/x
  3. Step 3: Cross multiply
    12,812,568.49x = 17,681,342.86 × 7,011,348.70
  4. Step 4: Simplify right side
    12,812,568.49x = 123,970,060,275,715.28
  5. Step 5: Solve for x
    x = 123,970,060,275,715.28/12,812,568.49
  6. Step 6: Final answer
    x = 9,675,660.30

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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.