Home / 420,743,883.60-631,115,815.68-114,035,990.40

Finding the Fourth Proportional to 420,743,883.60, 631,115,815.68 and 114,035,990.40

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Solution

The fourth proportional to 420,743,883.60, 631,115,815.68 and 114,035,990.40 is: 171,053,982.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,743,883.60 : 631,115,815.68 = 114,035,990.40 : x
  2. Step 2: Convert to fraction form
    420,743,883.60/631,115,815.68 = 114,035,990.40/x
  3. Step 3: Cross multiply
    420,743,883.60x = 631,115,815.68 × 114,035,990.40
  4. Step 4: Simplify right side
    420,743,883.60x = 71,969,917,098,172,648
  5. Step 5: Solve for x
    x = 71,969,917,098,172,648/420,743,883.60
  6. Step 6: Final answer
    x = 171,053,982.97

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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.