Home / 13,680,285.66-18,878,653.35-7,568,757.90

Finding the Fourth Proportional to 13,680,285.66, 18,878,653.35 and 7,568,757.90

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Solution

The fourth proportional to 13,680,285.66, 18,878,653.35 and 7,568,757.90 is: 10,444,807.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,680,285.66 : 18,878,653.35 = 7,568,757.90 : x
  2. Step 2: Convert to fraction form
    13,680,285.66/18,878,653.35 = 7,568,757.90/x
  3. Step 3: Cross multiply
    13,680,285.66x = 18,878,653.35 × 7,568,757.90
  4. Step 4: Simplify right side
    13,680,285.66x = 142,887,956,684,173.97
  5. Step 5: Solve for x
    x = 142,887,956,684,173.97/13,680,285.66
  6. Step 6: Final answer
    x = 10,444,807.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.