Home / 1,992,815,149.60-2,989,222,724.40-766,023,623.20

Finding the Fourth Proportional to 1,992,815,149.60, 2,989,222,724.40 and 766,023,623.20

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Solution

The fourth proportional to 1,992,815,149.60, 2,989,222,724.40 and 766,023,623.20 is: 1,149,035,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,815,149.60 : 2,989,222,724.40 = 766,023,623.20 : x
  2. Step 2: Convert to fraction form
    1,992,815,149.60/2,989,222,724.40 = 766,023,623.20/x
  3. Step 3: Cross multiply
    1,992,815,149.60x = 2,989,222,724.40 × 766,023,623.20
  4. Step 4: Simplify right side
    1,992,815,149.60x = 2,289,815,221,896,663,296
  5. Step 5: Solve for x
    x = 2,289,815,221,896,663,296/1,992,815,149.60
  6. Step 6: Final answer
    x = 1,149,035,434.80

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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.