Home / 502,532,843.49-693,485,379.23-279,509,727.69

Finding the Fourth Proportional to 502,532,843.49, 693,485,379.23 and 279,509,727.69

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Solution

The fourth proportional to 502,532,843.49, 693,485,379.23 and 279,509,727.69 is: 385,717,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,532,843.49 : 693,485,379.23 = 279,509,727.69 : x
  2. Step 2: Convert to fraction form
    502,532,843.49/693,485,379.23 = 279,509,727.69/x
  3. Step 3: Cross multiply
    502,532,843.49x = 693,485,379.23 × 279,509,727.69
  4. Step 4: Simplify right side
    502,532,843.49x = 193,835,909,504,176,128
  5. Step 5: Solve for x
    x = 193,835,909,504,176,128/502,532,843.49
  6. Step 6: Final answer
    x = 385,717,892.90

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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.