Home / 515,861,659.84-711,882,045.07-292,841,394.43

Finding the Fourth Proportional to 515,861,659.84, 711,882,045.07 and 292,841,394.43

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Solution

The fourth proportional to 515,861,659.84, 711,882,045.07 and 292,841,394.43 is: 404,117,124.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,861,659.84 : 711,882,045.07 = 292,841,394.43 : x
  2. Step 2: Convert to fraction form
    515,861,659.84/711,882,045.07 = 292,841,394.43/x
  3. Step 3: Cross multiply
    515,861,659.84x = 711,882,045.07 × 292,841,394.43
  4. Step 4: Simplify right side
    515,861,659.84x = 208,468,530,747,978,912
  5. Step 5: Solve for x
    x = 208,468,530,747,978,912/515,861,659.84
  6. Step 6: Final answer
    x = 404,117,124.76

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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.