Home / 143,665,390.22-198,258,230.91-77,585,882.12

Finding the Fourth Proportional to 143,665,390.22, 198,258,230.91 and 77,585,882.12

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Solution

The fourth proportional to 143,665,390.22, 198,258,230.91 and 77,585,882.12 is: 107,068,513.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,665,390.22 : 198,258,230.91 = 77,585,882.12 : x
  2. Step 2: Convert to fraction form
    143,665,390.22/198,258,230.91 = 77,585,882.12/x
  3. Step 3: Cross multiply
    143,665,390.22x = 198,258,230.91 × 77,585,882.12
  4. Step 4: Simplify right side
    143,665,390.22x = 15,382,039,732,649,578
  5. Step 5: Solve for x
    x = 15,382,039,732,649,578/143,665,390.22
  6. Step 6: Final answer
    x = 107,068,513.23

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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.