Home / 420,031,803.60-629,858,748.60-161,160,987.60

Finding the Fourth Proportional to 420,031,803.60, 629,858,748.60 and 161,160,987.60

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Solution

The fourth proportional to 420,031,803.60, 629,858,748.60 and 161,160,987.60 is: 241,668,981.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,031,803.60 : 629,858,748.60 = 161,160,987.60 : x
  2. Step 2: Convert to fraction form
    420,031,803.60/629,858,748.60 = 161,160,987.60/x
  3. Step 3: Cross multiply
    420,031,803.60x = 629,858,748.60 × 161,160,987.60
  4. Step 4: Simplify right side
    420,031,803.60x = 101,508,657,972,876,112
  5. Step 5: Solve for x
    x = 101,508,657,972,876,112/420,031,803.60
  6. Step 6: Final answer
    x = 241,668,981.02

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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.