Home / 288,909,420.85-433,109,036.82-221,055,033.97

Finding the Fourth Proportional to 288,909,420.85, 433,109,036.82 and 221,055,033.97

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Solution

The fourth proportional to 288,909,420.85, 433,109,036.82 and 221,055,033.97 is: 331,387,368.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,909,420.85 : 433,109,036.82 = 221,055,033.97 : x
  2. Step 2: Convert to fraction form
    288,909,420.85/433,109,036.82 = 221,055,033.97/x
  3. Step 3: Cross multiply
    288,909,420.85x = 433,109,036.82 × 221,055,033.97
  4. Step 4: Simplify right side
    288,909,420.85x = 95,740,932,844,793,536
  5. Step 5: Solve for x
    x = 95,740,932,844,793,536/288,909,420.85
  6. Step 6: Final answer
    x = 331,387,368.97

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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.