Home / 1,245,237,143.92-1,867,859,261.83-359,994,568.46

Finding the Fourth Proportional to 1,245,237,143.92, 1,867,859,261.83 and 359,994,568.46

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Solution

The fourth proportional to 1,245,237,143.92, 1,867,859,261.83 and 359,994,568.46 is: 539,992,877.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,237,143.92 : 1,867,859,261.83 = 359,994,568.46 : x
  2. Step 2: Convert to fraction form
    1,245,237,143.92/1,867,859,261.83 = 359,994,568.46/x
  3. Step 3: Cross multiply
    1,245,237,143.92x = 1,867,859,261.83 × 359,994,568.46
  4. Step 4: Simplify right side
    1,245,237,143.92x = 672,419,188,901,109,120
  5. Step 5: Solve for x
    x = 672,419,188,901,109,120/1,245,237,143.92
  6. Step 6: Final answer
    x = 539,992,877.81

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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.