Home / 133,669,981.60-200,504,972.40-87,753,479.20

Finding the Fourth Proportional to 133,669,981.60, 200,504,972.40 and 87,753,479.20

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Solution

The fourth proportional to 133,669,981.60, 200,504,972.40 and 87,753,479.20 is: 131,630,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,669,981.60 : 200,504,972.40 = 87,753,479.20 : x
  2. Step 2: Convert to fraction form
    133,669,981.60/200,504,972.40 = 87,753,479.20/x
  3. Step 3: Cross multiply
    133,669,981.60x = 200,504,972.40 × 87,753,479.20
  4. Step 4: Simplify right side
    133,669,981.60x = 17,595,008,924,999,976
  5. Step 5: Solve for x
    x = 17,595,008,924,999,976/133,669,981.60
  6. Step 6: Final answer
    x = 131,630,218.80

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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.