Home / 248,958,821.30-343,556,335.24-137,447,635.79

Finding the Fourth Proportional to 248,958,821.30, 343,556,335.24 and 137,447,635.79

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Solution

The fourth proportional to 248,958,821.30, 343,556,335.24 and 137,447,635.79 is: 189,673,962.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,958,821.30 : 343,556,335.24 = 137,447,635.79 : x
  2. Step 2: Convert to fraction form
    248,958,821.30/343,556,335.24 = 137,447,635.79/x
  3. Step 3: Cross multiply
    248,958,821.30x = 343,556,335.24 × 137,447,635.79
  4. Step 4: Simplify right side
    248,958,821.30x = 47,221,006,039,929,928
  5. Step 5: Solve for x
    x = 47,221,006,039,929,928/248,958,821.30
  6. Step 6: Final answer
    x = 189,673,962.12

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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.