Home / 140,455,672.38-210,639,781.53-49,557,964.86

Finding the Fourth Proportional to 140,455,672.38, 210,639,781.53 and 49,557,964.86

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Solution

The fourth proportional to 140,455,672.38, 210,639,781.53 and 49,557,964.86 is: 74,321,518.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,455,672.38 : 210,639,781.53 = 49,557,964.86 : x
  2. Step 2: Convert to fraction form
    140,455,672.38/210,639,781.53 = 49,557,964.86/x
  3. Step 3: Cross multiply
    140,455,672.38x = 210,639,781.53 × 49,557,964.86
  4. Step 4: Simplify right side
    140,455,672.38x = 10,438,878,891,181,816
  5. Step 5: Solve for x
    x = 10,438,878,891,181,816/140,455,672.38
  6. Step 6: Final answer
    x = 74,321,518.77

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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.