Home / 281,309,806.46-388,342,479.65-197,749,566.56

Finding the Fourth Proportional to 281,309,806.46, 388,342,479.65 and 197,749,566.56

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Solution

The fourth proportional to 281,309,806.46, 388,342,479.65 and 197,749,566.56 is: 272,989,264.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,309,806.46 : 388,342,479.65 = 197,749,566.56 : x
  2. Step 2: Convert to fraction form
    281,309,806.46/388,342,479.65 = 197,749,566.56/x
  3. Step 3: Cross multiply
    281,309,806.46x = 388,342,479.65 × 197,749,566.56
  4. Step 4: Simplify right side
    281,309,806.46x = 76,794,557,024,692,656
  5. Step 5: Solve for x
    x = 76,794,557,024,692,656/281,309,806.46
  6. Step 6: Final answer
    x = 272,989,264.02

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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.