Home / 12,865,178.73-17,754,525.78-7,708,429.56

Finding the Fourth Proportional to 12,865,178.73, 17,754,525.78 and 7,708,429.56

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Solution

The fourth proportional to 12,865,178.73, 17,754,525.78 and 7,708,429.56 is: 10,637,979.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,865,178.73 : 17,754,525.78 = 7,708,429.56 : x
  2. Step 2: Convert to fraction form
    12,865,178.73/17,754,525.78 = 7,708,429.56/x
  3. Step 3: Cross multiply
    12,865,178.73x = 17,754,525.78 × 7,708,429.56
  4. Step 4: Simplify right side
    12,865,178.73x = 136,859,511,346,334.06
  5. Step 5: Solve for x
    x = 136,859,511,346,334.06/12,865,178.73
  6. Step 6: Final answer
    x = 10,637,979.79

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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.