Home / 69,714,618.65-104,568,143.69-21,188,689.05

Finding the Fourth Proportional to 69,714,618.65, 104,568,143.69 and 21,188,689.05

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Solution

The fourth proportional to 69,714,618.65, 104,568,143.69 and 21,188,689.05 is: 31,781,883.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,714,618.65 : 104,568,143.69 = 21,188,689.05 : x
  2. Step 2: Convert to fraction form
    69,714,618.65/104,568,143.69 = 21,188,689.05/x
  3. Step 3: Cross multiply
    69,714,618.65x = 104,568,143.69 × 21,188,689.05
  4. Step 4: Simplify right side
    69,714,618.65x = 2,215,661,881,643,064.25
  5. Step 5: Solve for x
    x = 2,215,661,881,643,064.25/69,714,618.65
  6. Step 6: Final answer
    x = 31,781,883.41

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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.