Home / 130,206,423.11-179,833,992.98-85,751,120.57

Finding the Fourth Proportional to 130,206,423.11, 179,833,992.98 and 85,751,120.57

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Solution

The fourth proportional to 130,206,423.11, 179,833,992.98 and 85,751,120.57 is: 118,434,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,206,423.11 : 179,833,992.98 = 85,751,120.57 : x
  2. Step 2: Convert to fraction form
    130,206,423.11/179,833,992.98 = 85,751,120.57/x
  3. Step 3: Cross multiply
    130,206,423.11x = 179,833,992.98 × 85,751,120.57
  4. Step 4: Simplify right side
    130,206,423.11x = 15,420,966,413,284,588
  5. Step 5: Solve for x
    x = 15,420,966,413,284,588/130,206,423.11
  6. Step 6: Final answer
    x = 118,434,759.56

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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.