Home / 13,168,973.66-18,171,952.38-7,869,616.97

Finding the Fourth Proportional to 13,168,973.66, 18,171,952.38 and 7,869,616.97

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Solution

The fourth proportional to 13,168,973.66, 18,171,952.38 and 7,869,616.97 is: 10,859,335.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168,973.66 : 18,171,952.38 = 7,869,616.97 : x
  2. Step 2: Convert to fraction form
    13,168,973.66/18,171,952.38 = 7,869,616.97/x
  3. Step 3: Cross multiply
    13,168,973.66x = 18,171,952.38 × 7,869,616.97
  4. Step 4: Simplify right side
    13,168,973.66x = 143,006,304,736,820.12
  5. Step 5: Solve for x
    x = 143,006,304,736,820.12/13,168,973.66
  6. Step 6: Final answer
    x = 10,859,335.62

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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.