Home / 31,258,081-43,136,284.62-18,214,288.12

Finding the Fourth Proportional to 31,258,081, 43,136,284.62 and 18,214,288.12

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Solution

The fourth proportional to 31,258,081, 43,136,284.62 and 18,214,288.12 is: 25,135,795.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,258,081 : 43,136,284.62 = 18,214,288.12 : x
  2. Step 2: Convert to fraction form
    31,258,081/43,136,284.62 = 18,214,288.12/x
  3. Step 3: Cross multiply
    31,258,081x = 43,136,284.62 × 18,214,288.12
  4. Step 4: Simplify right side
    31,258,081x = 785,696,716,495,004.75
  5. Step 5: Solve for x
    x = 785,696,716,495,004.75/31,258,081
  6. Step 6: Final answer
    x = 25,135,795.01

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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.