Home / 778,577,553.60-1,168,527,679.20-318,845,659.20

Finding the Fourth Proportional to 778,577,553.60, 1,168,527,679.20 and 318,845,659.20

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Solution

The fourth proportional to 778,577,553.60, 1,168,527,679.20 and 318,845,659.20 is: 478,539,326.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,577,553.60 : 1,168,527,679.20 = 318,845,659.20 : x
  2. Step 2: Convert to fraction form
    778,577,553.60/1,168,527,679.20 = 318,845,659.20/x
  3. Step 3: Cross multiply
    778,577,553.60x = 1,168,527,679.20 × 318,845,659.20
  4. Step 4: Simplify right side
    778,577,553.60x = 372,579,978,167,970,112
  5. Step 5: Solve for x
    x = 372,579,978,167,970,112/778,577,553.60
  6. Step 6: Final answer
    x = 478,539,326.55

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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.