Home / 12,866,844.40-17,756,449.28-6,986,475.28

Finding the Fourth Proportional to 12,866,844.40, 17,756,449.28 and 6,986,475.28

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Solution

The fourth proportional to 12,866,844.40, 17,756,449.28 and 6,986,475.28 is: 9,641,446.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866,844.40 : 17,756,449.28 = 6,986,475.28 : x
  2. Step 2: Convert to fraction form
    12,866,844.40/17,756,449.28 = 6,986,475.28/x
  3. Step 3: Cross multiply
    12,866,844.40x = 17,756,449.28 × 6,986,475.28
  4. Step 4: Simplify right side
    12,866,844.40x = 124,054,993,955,293.81
  5. Step 5: Solve for x
    x = 124,054,993,955,293.81/12,866,844.40
  6. Step 6: Final answer
    x = 9,641,446.66

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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.