Home / 386,244,593.60-579,366,890.40-343,918,270.40

Finding the Fourth Proportional to 386,244,593.60, 579,366,890.40 and 343,918,270.40

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Solution

The fourth proportional to 386,244,593.60, 579,366,890.40 and 343,918,270.40 is: 515,877,405.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,244,593.60 : 579,366,890.40 = 343,918,270.40 : x
  2. Step 2: Convert to fraction form
    386,244,593.60/579,366,890.40 = 343,918,270.40/x
  3. Step 3: Cross multiply
    386,244,593.60x = 579,366,890.40 × 343,918,270.40
  4. Step 4: Simplify right side
    386,244,593.60x = 199,254,858,873,394,336
  5. Step 5: Solve for x
    x = 199,254,858,873,394,336/386,244,593.60
  6. Step 6: Final answer
    x = 515,877,405.60

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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.