Home / 12,743,079.80-17,585,442.38-7,019,943.80

Finding the Fourth Proportional to 12,743,079.80, 17,585,442.38 and 7,019,943.80

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Solution

The fourth proportional to 12,743,079.80, 17,585,442.38 and 7,019,943.80 is: 9,687,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,743,079.80 : 17,585,442.38 = 7,019,943.80 : x
  2. Step 2: Convert to fraction form
    12,743,079.80/17,585,442.38 = 7,019,943.80/x
  3. Step 3: Cross multiply
    12,743,079.80x = 17,585,442.38 × 7,019,943.80
  4. Step 4: Simplify right side
    12,743,079.80x = 123,448,817,205,738.23
  5. Step 5: Solve for x
    x = 123,448,817,205,738.23/12,743,079.80
  6. Step 6: Final answer
    x = 9,687,518.18

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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.