Home / 21,178,836.90-31,764,599.01-5,616,773.46

Finding the Fourth Proportional to 21,178,836.90, 31,764,599.01 and 5,616,773.46

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Solution

The fourth proportional to 21,178,836.90, 31,764,599.01 and 5,616,773.46 is: 8,424,190.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178,836.90 : 31,764,599.01 = 5,616,773.46 : x
  2. Step 2: Convert to fraction form
    21,178,836.90/31,764,599.01 = 5,616,773.46/x
  3. Step 3: Cross multiply
    21,178,836.90x = 31,764,599.01 × 5,616,773.46
  4. Step 4: Simplify right side
    21,178,836.90x = 178,414,556,686,910.28
  5. Step 5: Solve for x
    x = 178,414,556,686,910.28/21,178,836.90
  6. Step 6: Final answer
    x = 8,424,190.50

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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.