Home / 502,532,840.74-693,485,375.43-279,509,724.94

Finding the Fourth Proportional to 502,532,840.74, 693,485,375.43 and 279,509,724.94

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Solution

The fourth proportional to 502,532,840.74, 693,485,375.43 and 279,509,724.94 is: 385,717,889.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,532,840.74 : 693,485,375.43 = 279,509,724.94 : x
  2. Step 2: Convert to fraction form
    502,532,840.74/693,485,375.43 = 279,509,724.94/x
  3. Step 3: Cross multiply
    502,532,840.74x = 693,485,375.43 × 279,509,724.94
  4. Step 4: Simplify right side
    502,532,840.74x = 193,835,906,536,351,904
  5. Step 5: Solve for x
    x = 193,835,906,536,351,904/502,532,840.74
  6. Step 6: Final answer
    x = 385,717,889.11

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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.