Home / 10,360,820.80-15,535,010.40-5,321,972.80

Finding the Fourth Proportional to 10,360,820.80, 15,535,010.40 and 5,321,972.80

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Solution

The fourth proportional to 10,360,820.80, 15,535,010.40 and 5,321,972.80 is: 7,979,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360,820.80 : 15,535,010.40 = 5,321,972.80 : x
  2. Step 2: Convert to fraction form
    10,360,820.80/15,535,010.40 = 5,321,972.80/x
  3. Step 3: Cross multiply
    10,360,820.80x = 15,535,010.40 × 5,321,972.80
  4. Step 4: Simplify right side
    10,360,820.80x = 82,676,902,796,517.12
  5. Step 5: Solve for x
    x = 82,676,902,796,517.12/10,360,820.80
  6. Step 6: Final answer
    x = 7,979,763.80

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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.