Home / 385,202,711.80-531,582,746.25-226,390,185.73

Finding the Fourth Proportional to 385,202,711.80, 531,582,746.25 and 226,390,185.73

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Solution

The fourth proportional to 385,202,711.80, 531,582,746.25 and 226,390,185.73 is: 312,420,221.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,202,711.80 : 531,582,746.25 = 226,390,185.73 : x
  2. Step 2: Convert to fraction form
    385,202,711.80/531,582,746.25 = 226,390,185.73/x
  3. Step 3: Cross multiply
    385,202,711.80x = 531,582,746.25 × 226,390,185.73
  4. Step 4: Simplify right side
    385,202,711.80x = 120,345,116,654,400,960
  5. Step 5: Solve for x
    x = 120,345,116,654,400,960/385,202,711.80
  6. Step 6: Final answer
    x = 312,420,221.79

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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.