Home / 21,232,680.42-31,843,771.80-9,100,768.10

Finding the Fourth Proportional to 21,232,680.42, 31,843,771.80 and 9,100,768.10

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Solution

The fourth proportional to 21,232,680.42, 31,843,771.80 and 9,100,768.10 is: 13,648,902.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232,680.42 : 31,843,771.80 = 9,100,768.10 : x
  2. Step 2: Convert to fraction form
    21,232,680.42/31,843,771.80 = 9,100,768.10/x
  3. Step 3: Cross multiply
    21,232,680.42x = 31,843,771.80 × 9,100,768.10
  4. Step 4: Simplify right side
    21,232,680.42x = 289,802,782,581,119.56
  5. Step 5: Solve for x
    x = 289,802,782,581,119.56/21,232,680.42
  6. Step 6: Final answer
    x = 13,648,902.39

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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.