Home / 81,005,149.38-111,751,482.90-47,497,525.21

Finding the Fourth Proportional to 81,005,149.38, 111,751,482.90 and 47,497,525.21

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Solution

The fourth proportional to 81,005,149.38, 111,751,482.90 and 47,497,525.21 is: 65,525,697.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,005,149.38 : 111,751,482.90 = 47,497,525.21 : x
  2. Step 2: Convert to fraction form
    81,005,149.38/111,751,482.90 = 47,497,525.21/x
  3. Step 3: Cross multiply
    81,005,149.38x = 111,751,482.90 × 47,497,525.21
  4. Step 4: Simplify right side
    81,005,149.38x = 5,307,918,876,297,634
  5. Step 5: Solve for x
    x = 5,307,918,876,297,634/81,005,149.38
  6. Step 6: Final answer
    x = 65,525,697.03

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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.