Home / 12,812,659.56-17,681,472.36-7,011,442.80

Finding the Fourth Proportional to 12,812,659.56, 17,681,472.36 and 7,011,442.80

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Solution

The fourth proportional to 12,812,659.56, 17,681,472.36 and 7,011,442.80 is: 9,675,792.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812,659.56 : 17,681,472.36 = 7,011,442.80 : x
  2. Step 2: Convert to fraction form
    12,812,659.56/17,681,472.36 = 7,011,442.80/x
  3. Step 3: Cross multiply
    12,812,659.56x = 17,681,472.36 × 7,011,442.80
  4. Step 4: Simplify right side
    12,812,659.56x = 123,972,632,071,921
  5. Step 5: Solve for x
    x = 123,972,632,071,921/12,812,659.56
  6. Step 6: Final answer
    x = 9,675,792.25

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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.