Home / 7,128,112.80-10,676,422.80-2,866,087.20

Finding the Fourth Proportional to 7,128,112.80, 10,676,422.80 and 2,866,087.20

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Solution

The fourth proportional to 7,128,112.80, 10,676,422.80 and 2,866,087.20 is: 4,292,799.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,112.80 : 10,676,422.80 = 2,866,087.20 : x
  2. Step 2: Convert to fraction form
    7,128,112.80/10,676,422.80 = 2,866,087.20/x
  3. Step 3: Cross multiply
    7,128,112.80x = 10,676,422.80 × 2,866,087.20
  4. Step 4: Simplify right side
    7,128,112.80x = 30,599,558,728,868.16
  5. Step 5: Solve for x
    x = 30,599,558,728,868.16/7,128,112.80
  6. Step 6: Final answer
    x = 4,292,799.45

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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.