Home / 672,192,012.80-1,008,288,019.20-161,588,748.80

Finding the Fourth Proportional to 672,192,012.80, 1,008,288,019.20 and 161,588,748.80

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Solution

The fourth proportional to 672,192,012.80, 1,008,288,019.20 and 161,588,748.80 is: 242,383,123.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,192,012.80 : 1,008,288,019.20 = 161,588,748.80 : x
  2. Step 2: Convert to fraction form
    672,192,012.80/1,008,288,019.20 = 161,588,748.80/x
  3. Step 3: Cross multiply
    672,192,012.80x = 1,008,288,019.20 × 161,588,748.80
  4. Step 4: Simplify right side
    672,192,012.80x = 162,927,999,452,558,400
  5. Step 5: Solve for x
    x = 162,927,999,452,558,400/672,192,012.80
  6. Step 6: Final answer
    x = 242,383,123.20

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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.