Home / 15,676,825.12-21,635,382.96-8,708,858.12

Finding the Fourth Proportional to 15,676,825.12, 21,635,382.96 and 8,708,858.12

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Solution

The fourth proportional to 15,676,825.12, 21,635,382.96 and 8,708,858.12 is: 12,018,982.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,676,825.12 : 21,635,382.96 = 8,708,858.12 : x
  2. Step 2: Convert to fraction form
    15,676,825.12/21,635,382.96 = 8,708,858.12/x
  3. Step 3: Cross multiply
    15,676,825.12x = 21,635,382.96 × 8,708,858.12
  4. Step 4: Simplify right side
    15,676,825.12x = 188,419,480,624,594.12
  5. Step 5: Solve for x
    x = 188,419,480,624,594.12/15,676,825.12
  6. Step 6: Final answer
    x = 12,018,982.11

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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.