Home / 6,128,851.80-9,171,504.90-5,338,810.20

Finding the Fourth Proportional to 6,128,851.80, 9,171,504.90 and 5,338,810.20

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Solution

The fourth proportional to 6,128,851.80, 9,171,504.90 and 5,338,810.20 is: 7,989,249.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128,851.80 : 9,171,504.90 = 5,338,810.20 : x
  2. Step 2: Convert to fraction form
    6,128,851.80/9,171,504.90 = 5,338,810.20/x
  3. Step 3: Cross multiply
    6,128,851.80x = 9,171,504.90 × 5,338,810.20
  4. Step 4: Simplify right side
    6,128,851.80x = 48,964,923,909,469.98
  5. Step 5: Solve for x
    x = 48,964,923,909,469.98/6,128,851.80
  6. Step 6: Final answer
    x = 7,989,249.13

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1.5x scale

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.