Home / 203,129,390.06-304,598,035.20-78,690,302.62

Finding the Fourth Proportional to 203,129,390.06, 304,598,035.20 and 78,690,302.62

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Solution

The fourth proportional to 203,129,390.06, 304,598,035.20 and 78,690,302.62 is: 117,998,245.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,129,390.06 : 304,598,035.20 = 78,690,302.62 : x
  2. Step 2: Convert to fraction form
    203,129,390.06/304,598,035.20 = 78,690,302.62/x
  3. Step 3: Cross multiply
    203,129,390.06x = 304,598,035.20 × 78,690,302.62
  4. Step 4: Simplify right side
    203,129,390.06x = 23,968,911,566,872,144
  5. Step 5: Solve for x
    x = 23,968,911,566,872,144/203,129,390.06
  6. Step 6: Final answer
    x = 117,998,245.16

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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.