Home / 117,936,015.70-176,904,023.55-77,121,346.90

Finding the Fourth Proportional to 117,936,015.70, 176,904,023.55 and 77,121,346.90

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Solution

The fourth proportional to 117,936,015.70, 176,904,023.55 and 77,121,346.90 is: 115,682,020.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,936,015.70 : 176,904,023.55 = 77,121,346.90 : x
  2. Step 2: Convert to fraction form
    117,936,015.70/176,904,023.55 = 77,121,346.90/x
  3. Step 3: Cross multiply
    117,936,015.70x = 176,904,023.55 × 77,121,346.90
  4. Step 4: Simplify right side
    117,936,015.70x = 13,643,076,568,205,322
  5. Step 5: Solve for x
    x = 13,643,076,568,205,322/117,936,015.70
  6. Step 6: Final answer
    x = 115,682,020.35

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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.