Home / 320,801,987.76-481,125,933.12-148,112,880.96

Finding the Fourth Proportional to 320,801,987.76, 481,125,933.12 and 148,112,880.96

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Solution

The fourth proportional to 320,801,987.76, 481,125,933.12 and 148,112,880.96 is: 222,133,748.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,801,987.76 : 481,125,933.12 = 148,112,880.96 : x
  2. Step 2: Convert to fraction form
    320,801,987.76/481,125,933.12 = 148,112,880.96/x
  3. Step 3: Cross multiply
    320,801,987.76x = 481,125,933.12 × 148,112,880.96
  4. Step 4: Simplify right side
    320,801,987.76x = 71,260,948,058,971,488
  5. Step 5: Solve for x
    x = 71,260,948,058,971,488/320,801,987.76
  6. Step 6: Final answer
    x = 222,133,748.47

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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.