Home / 76,778,797.50-105,955,445.56-43,738,556.94

Finding the Fourth Proportional to 76,778,797.50, 105,955,445.56 and 43,738,556.94

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Solution

The fourth proportional to 76,778,797.50, 105,955,445.56 and 43,738,556.94 is: 60,359,610.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,778,797.50 : 105,955,445.56 = 43,738,556.94 : x
  2. Step 2: Convert to fraction form
    76,778,797.50/105,955,445.56 = 43,738,556.94/x
  3. Step 3: Cross multiply
    76,778,797.50x = 105,955,445.56 × 43,738,556.94
  4. Step 4: Simplify right side
    76,778,797.50x = 4,634,338,288,729,130
  5. Step 5: Solve for x
    x = 4,634,338,288,729,130/76,778,797.50
  6. Step 6: Final answer
    x = 60,359,610.20

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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.