Home / 781,479,750.53-1,171,970,750.64-256,727,046.35

Finding the Fourth Proportional to 781,479,750.53, 1,171,970,750.64 and 256,727,046.35

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Solution

The fourth proportional to 781,479,750.53, 1,171,970,750.64 and 256,727,046.35 is: 385,008,810.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,479,750.53 : 1,171,970,750.64 = 256,727,046.35 : x
  2. Step 2: Convert to fraction form
    781,479,750.53/1,171,970,750.64 = 256,727,046.35/x
  3. Step 3: Cross multiply
    781,479,750.53x = 1,171,970,750.64 × 256,727,046.35
  4. Step 4: Simplify right side
    781,479,750.53x = 300,876,589,224,326,208
  5. Step 5: Solve for x
    x = 300,876,589,224,326,208/781,479,750.53
  6. Step 6: Final answer
    x = 385,008,810.55

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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.