Home / 21,186,264.80-31,789,170.81-9,675,260.79

Finding the Fourth Proportional to 21,186,264.80, 31,789,170.81 and 9,675,260.79

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Solution

The fourth proportional to 21,186,264.80, 31,789,170.81 and 9,675,260.79 is: 14,517,354.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186,264.80 : 31,789,170.81 = 9,675,260.79 : x
  2. Step 2: Convert to fraction form
    21,186,264.80/31,789,170.81 = 9,675,260.79/x
  3. Step 3: Cross multiply
    21,186,264.80x = 31,789,170.81 × 9,675,260.79
  4. Step 4: Simplify right side
    21,186,264.80x = 307,568,517,884,605.50
  5. Step 5: Solve for x
    x = 307,568,517,884,605.50/21,186,264.80
  6. Step 6: Final answer
    x = 14,517,354.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.