Home / 130,206,372.18-179,833,923-85,751,069.82

Finding the Fourth Proportional to 130,206,372.18, 179,833,923 and 85,751,069.82

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Solution

The fourth proportional to 130,206,372.18, 179,833,923 and 85,751,069.82 is: 118,434,689.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,206,372.18 : 179,833,923 = 85,751,069.82 : x
  2. Step 2: Convert to fraction form
    130,206,372.18/179,833,923 = 85,751,069.82/x
  3. Step 3: Cross multiply
    130,206,372.18x = 179,833,923 × 85,751,069.82
  4. Step 4: Simplify right side
    130,206,372.18x = 15,420,951,287,177,502
  5. Step 5: Solve for x
    x = 15,420,951,287,177,502/130,206,372.18
  6. Step 6: Final answer
    x = 118,434,689.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.