Home / 722,229,955.50-1,081,788,370.82-487,771,405.34

Finding the Fourth Proportional to 722,229,955.50, 1,081,788,370.82 and 487,771,405.34

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Solution

The fourth proportional to 722,229,955.50, 1,081,788,370.82 and 487,771,405.34 is: 730,605,854.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,229,955.50 : 1,081,788,370.82 = 487,771,405.34 : x
  2. Step 2: Convert to fraction form
    722,229,955.50/1,081,788,370.82 = 487,771,405.34/x
  3. Step 3: Cross multiply
    722,229,955.50x = 1,081,788,370.82 × 487,771,405.34
  4. Step 4: Simplify right side
    722,229,955.50x = 527,665,433,915,340,416
  5. Step 5: Solve for x
    x = 527,665,433,915,340,416/722,229,955.50
  6. Step 6: Final answer
    x = 730,605,854.68

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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.