Home / 21,504,821.60-32,257,232.40-19,787,880.80

Finding the Fourth Proportional to 21,504,821.60, 32,257,232.40 and 19,787,880.80

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Solution

The fourth proportional to 21,504,821.60, 32,257,232.40 and 19,787,880.80 is: 29,681,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504,821.60 : 32,257,232.40 = 19,787,880.80 : x
  2. Step 2: Convert to fraction form
    21,504,821.60/32,257,232.40 = 19,787,880.80/x
  3. Step 3: Cross multiply
    21,504,821.60x = 32,257,232.40 × 19,787,880.80
  4. Step 4: Simplify right side
    21,504,821.60x = 638,302,269,669,097.88
  5. Step 5: Solve for x
    x = 638,302,269,669,097.88/21,504,821.60
  6. Step 6: Final answer
    x = 29,681,821.20

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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.