Home / 140,210,072.12-193,490,499.92-76,631,695.51

Finding the Fourth Proportional to 140,210,072.12, 193,490,499.92 and 76,631,695.51

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Solution

The fourth proportional to 140,210,072.12, 193,490,499.92 and 76,631,695.51 is: 105,752,067.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,210,072.12 : 193,490,499.92 = 76,631,695.51 : x
  2. Step 2: Convert to fraction form
    140,210,072.12/193,490,499.92 = 76,631,695.51/x
  3. Step 3: Cross multiply
    140,210,072.12x = 193,490,499.92 × 76,631,695.51
  4. Step 4: Simplify right side
    140,210,072.12x = 14,827,505,073,947,120
  5. Step 5: Solve for x
    x = 14,827,505,073,947,120/140,210,072.12
  6. Step 6: Final answer
    x = 105,752,067.95

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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.