Home / 76,728,569.44-115,138,246.56-28,240,479.04

Finding the Fourth Proportional to 76,728,569.44, 115,138,246.56 and 28,240,479.04

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Solution

The fourth proportional to 76,728,569.44, 115,138,246.56 and 28,240,479.04 is: 42,377,425.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,728,569.44 : 115,138,246.56 = 28,240,479.04 : x
  2. Step 2: Convert to fraction form
    76,728,569.44/115,138,246.56 = 28,240,479.04/x
  3. Step 3: Cross multiply
    76,728,569.44x = 115,138,246.56 × 28,240,479.04
  4. Step 4: Simplify right side
    76,728,569.44x = 3,251,559,238,680,032
  5. Step 5: Solve for x
    x = 3,251,559,238,680,032/76,728,569.44
  6. Step 6: Final answer
    x = 42,377,425.55

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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.