Home / 143,665,396.94-198,258,240.20-77,585,888.88

Finding the Fourth Proportional to 143,665,396.94, 198,258,240.20 and 77,585,888.88

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Solution

The fourth proportional to 143,665,396.94, 198,258,240.20 and 77,585,888.88 is: 107,068,522.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,665,396.94 : 198,258,240.20 = 77,585,888.88 : x
  2. Step 2: Convert to fraction form
    143,665,396.94/198,258,240.20 = 77,585,888.88/x
  3. Step 3: Cross multiply
    143,665,396.94x = 198,258,240.20 × 77,585,888.88
  4. Step 4: Simplify right side
    143,665,396.94x = 15,382,041,793,313,618
  5. Step 5: Solve for x
    x = 15,382,041,793,313,618/143,665,396.94
  6. Step 6: Final answer
    x = 107,068,522.56

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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.