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Finding the Fourth Proportional to 12,659,607.83, 18,989,411.99 and 3,074,921.79

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Solution

The fourth proportional to 12,659,607.83, 18,989,411.99 and 3,074,921.79 is: 4,612,382.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659,607.83 : 18,989,411.99 = 3,074,921.79 : x
  2. Step 2: Convert to fraction form
    12,659,607.83/18,989,411.99 = 3,074,921.79/x
  3. Step 3: Cross multiply
    12,659,607.83x = 18,989,411.99 × 3,074,921.79
  4. Step 4: Simplify right side
    12,659,607.83x = 58,390,956,691,963.65
  5. Step 5: Solve for x
    x = 58,390,956,691,963.65/12,659,607.83
  6. Step 6: Final answer
    x = 4,612,382.75

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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.