Home / 117,936,005.20-176,904,007.80-77,121,336.40

Finding the Fourth Proportional to 117,936,005.20, 176,904,007.80 and 77,121,336.40

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Solution

The fourth proportional to 117,936,005.20, 176,904,007.80 and 77,121,336.40 is: 115,682,004.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,936,005.20 : 176,904,007.80 = 77,121,336.40 : x
  2. Step 2: Convert to fraction form
    117,936,005.20/176,904,007.80 = 77,121,336.40/x
  3. Step 3: Cross multiply
    117,936,005.20x = 176,904,007.80 × 77,121,336.40
  4. Step 4: Simplify right side
    117,936,005.20x = 13,643,073,496,052,026
  5. Step 5: Solve for x
    x = 13,643,073,496,052,026/117,936,005.20
  6. Step 6: Final answer
    x = 115,682,004.60

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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.