Home / 12,487,280.20-18,731,438.70-3,967,376.20

Finding the Fourth Proportional to 12,487,280.20, 18,731,438.70 and 3,967,376.20

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Solution

The fourth proportional to 12,487,280.20, 18,731,438.70 and 3,967,376.20 is: 5,951,229.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487,280.20 : 18,731,438.70 = 3,967,376.20 : x
  2. Step 2: Convert to fraction form
    12,487,280.20/18,731,438.70 = 3,967,376.20/x
  3. Step 3: Cross multiply
    12,487,280.20x = 18,731,438.70 × 3,967,376.20
  4. Step 4: Simplify right side
    12,487,280.20x = 74,314,664,090,138.94
  5. Step 5: Solve for x
    x = 74,314,664,090,138.94/12,487,280.20
  6. Step 6: Final answer
    x = 5,951,229.00

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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.