Home / 1,992,906,005.70-2,989,359,008.55-682,372,499.70

Finding the Fourth Proportional to 1,992,906,005.70, 2,989,359,008.55 and 682,372,499.70

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Solution

The fourth proportional to 1,992,906,005.70, 2,989,359,008.55 and 682,372,499.70 is: 1,023,558,749.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,906,005.70 : 2,989,359,008.55 = 682,372,499.70 : x
  2. Step 2: Convert to fraction form
    1,992,906,005.70/2,989,359,008.55 = 682,372,499.70/x
  3. Step 3: Cross multiply
    1,992,906,005.70x = 2,989,359,008.55 × 682,372,499.70
  4. Step 4: Simplify right side
    1,992,906,005.70x = 2,039,856,379,164,977,408
  5. Step 5: Solve for x
    x = 2,039,856,379,164,977,408/1,992,906,005.70
  6. Step 6: Final answer
    x = 1,023,558,749.55

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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.