Home / 10,628,704.80-15,943,057.20-5,238,187.20

Finding the Fourth Proportional to 10,628,704.80, 15,943,057.20 and 5,238,187.20

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Solution

The fourth proportional to 10,628,704.80, 15,943,057.20 and 5,238,187.20 is: 7,857,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628,704.80 : 15,943,057.20 = 5,238,187.20 : x
  2. Step 2: Convert to fraction form
    10,628,704.80/15,943,057.20 = 5,238,187.20/x
  3. Step 3: Cross multiply
    10,628,704.80x = 15,943,057.20 × 5,238,187.20
  4. Step 4: Simplify right side
    10,628,704.80x = 83,512,718,153,907.84
  5. Step 5: Solve for x
    x = 83,512,718,153,907.84/10,628,704.80
  6. Step 6: Final answer
    x = 7,857,280.80

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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.