Home / 288,909,418.50-433,109,033.33-221,055,031.62

Finding the Fourth Proportional to 288,909,418.50, 433,109,033.33 and 221,055,031.62

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Solution

The fourth proportional to 288,909,418.50, 433,109,033.33 and 221,055,031.62 is: 331,387,365.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,909,418.50 : 433,109,033.33 = 221,055,031.62 : x
  2. Step 2: Convert to fraction form
    288,909,418.50/433,109,033.33 = 221,055,031.62/x
  3. Step 3: Cross multiply
    288,909,418.50x = 433,109,033.33 × 221,055,031.62
  4. Step 4: Simplify right side
    288,909,418.50x = 95,740,931,056,565,504
  5. Step 5: Solve for x
    x = 95,740,931,056,565,504/288,909,418.50
  6. Step 6: Final answer
    x = 331,387,365.47

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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.