Home / 115,505,560.78-173,141,756.26-72,405,031.38

Finding the Fourth Proportional to 115,505,560.78, 173,141,756.26 and 72,405,031.38

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Solution

The fourth proportional to 115,505,560.78, 173,141,756.26 and 72,405,031.38 is: 108,534,465.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,505,560.78 : 173,141,756.26 = 72,405,031.38 : x
  2. Step 2: Convert to fraction form
    115,505,560.78/173,141,756.26 = 72,405,031.38/x
  3. Step 3: Cross multiply
    115,505,560.78x = 173,141,756.26 × 72,405,031.38
  4. Step 4: Simplify right side
    115,505,560.78x = 12,536,334,295,193,610
  5. Step 5: Solve for x
    x = 12,536,334,295,193,610/115,505,560.78
  6. Step 6: Final answer
    x = 108,534,465.45

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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.