Home / 79,777,949.60-119,725,906.80-31,943,223.20

Finding the Fourth Proportional to 79,777,949.60, 119,725,906.80 and 31,943,223.20

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Solution

The fourth proportional to 79,777,949.60, 119,725,906.80 and 31,943,223.20 is: 47,938,451.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,777,949.60 : 119,725,906.80 = 31,943,223.20 : x
  2. Step 2: Convert to fraction form
    79,777,949.60/119,725,906.80 = 31,943,223.20/x
  3. Step 3: Cross multiply
    79,777,949.60x = 119,725,906.80 × 31,943,223.20
  4. Step 4: Simplify right side
    79,777,949.60x = 3,824,431,363,734,797.50
  5. Step 5: Solve for x
    x = 3,824,431,363,734,797.50/79,777,949.60
  6. Step 6: Final answer
    x = 47,938,451.45

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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.