Home / 81,338,760.20-112,205,984.19-51,939,181.64

Finding the Fourth Proportional to 81,338,760.20, 112,205,984.19 and 51,939,181.64

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Solution

The fourth proportional to 81,338,760.20, 112,205,984.19 and 51,939,181.64 is: 71,649,567.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,338,760.20 : 112,205,984.19 = 51,939,181.64 : x
  2. Step 2: Convert to fraction form
    81,338,760.20/112,205,984.19 = 51,939,181.64/x
  3. Step 3: Cross multiply
    81,338,760.20x = 112,205,984.19 × 51,939,181.64
  4. Step 4: Simplify right side
    81,338,760.20x = 5,827,886,993,939,378
  5. Step 5: Solve for x
    x = 5,827,886,993,939,378/81,338,760.20
  6. Step 6: Final answer
    x = 71,649,567.56

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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.