Home / 130,365,431.70-195,264,712.35-79,158,138.90

Finding the Fourth Proportional to 130,365,431.70, 195,264,712.35 and 79,158,138.90

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Solution

The fourth proportional to 130,365,431.70, 195,264,712.35 and 79,158,138.90 is: 118,565,105.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,365,431.70 : 195,264,712.35 = 79,158,138.90 : x
  2. Step 2: Convert to fraction form
    130,365,431.70/195,264,712.35 = 79,158,138.90/x
  3. Step 3: Cross multiply
    130,365,431.70x = 195,264,712.35 × 79,158,138.90
  4. Step 4: Simplify right side
    130,365,431.70x = 15,456,791,222,469,846
  5. Step 5: Solve for x
    x = 15,456,791,222,469,846/130,365,431.70
  6. Step 6: Final answer
    x = 118,565,105.96

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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.