Home / 12,780,833.20-19,171,419.23-4,261,172.47

Finding the Fourth Proportional to 12,780,833.20, 19,171,419.23 and 4,261,172.47

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Solution

The fourth proportional to 12,780,833.20, 19,171,419.23 and 4,261,172.47 is: 6,391,815.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780,833.20 : 19,171,419.23 = 4,261,172.47 : x
  2. Step 2: Convert to fraction form
    12,780,833.20/19,171,419.23 = 4,261,172.47/x
  3. Step 3: Cross multiply
    12,780,833.20x = 19,171,419.23 × 4,261,172.47
  4. Step 4: Simplify right side
    12,780,833.20x = 81,692,723,833,704.59
  5. Step 5: Solve for x
    x = 81,692,723,833,704.59/12,780,833.20
  6. Step 6: Final answer
    x = 6,391,815.19

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1.5x scale

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.