Home / 1,992,815,148.60-2,989,222,722.90-766,023,622.20

Finding the Fourth Proportional to 1,992,815,148.60, 2,989,222,722.90 and 766,023,622.20

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Solution

The fourth proportional to 1,992,815,148.60, 2,989,222,722.90 and 766,023,622.20 is: 1,149,035,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,815,148.60 : 2,989,222,722.90 = 766,023,622.20 : x
  2. Step 2: Convert to fraction form
    1,992,815,148.60/2,989,222,722.90 = 766,023,622.20/x
  3. Step 3: Cross multiply
    1,992,815,148.60x = 2,989,222,722.90 × 766,023,622.20
  4. Step 4: Simplify right side
    1,992,815,148.60x = 2,289,815,217,758,405,120
  5. Step 5: Solve for x
    x = 2,289,815,217,758,405,120/1,992,815,148.60
  6. Step 6: Final answer
    x = 1,149,035,433.30

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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.