Home / 76,778,797.38-105,955,445.40-43,738,556.82

Finding the Fourth Proportional to 76,778,797.38, 105,955,445.40 and 43,738,556.82

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Solution

The fourth proportional to 76,778,797.38, 105,955,445.40 and 43,738,556.82 is: 60,359,610.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,778,797.38 : 105,955,445.40 = 43,738,556.82 : x
  2. Step 2: Convert to fraction form
    76,778,797.38/105,955,445.40 = 43,738,556.82/x
  3. Step 3: Cross multiply
    76,778,797.38x = 105,955,445.40 × 43,738,556.82
  4. Step 4: Simplify right side
    76,778,797.38x = 4,634,338,269,016,308
  5. Step 5: Solve for x
    x = 4,634,338,269,016,308/76,778,797.38
  6. Step 6: Final answer
    x = 60,359,610.04

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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.