Home / 21,191,750.70-31,787,626.05-19,632,857.10

Finding the Fourth Proportional to 21,191,750.70, 31,787,626.05 and 19,632,857.10

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Solution

The fourth proportional to 21,191,750.70, 31,787,626.05 and 19,632,857.10 is: 29,449,285.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191,750.70 : 31,787,626.05 = 19,632,857.10 : x
  2. Step 2: Convert to fraction form
    21,191,750.70/31,787,626.05 = 19,632,857.10/x
  3. Step 3: Cross multiply
    21,191,750.70x = 31,787,626.05 × 19,632,857.10
  4. Step 4: Simplify right side
    21,191,750.70x = 624,081,919,787,887.50
  5. Step 5: Solve for x
    x = 624,081,919,787,887.50/21,191,750.70
  6. Step 6: Final answer
    x = 29,449,285.65

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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.