Home / 143,713,662.75-198,324,854.60-78,523,566.75

Finding the Fourth Proportional to 143,713,662.75, 198,324,854.60 and 78,523,566.75

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Solution

The fourth proportional to 143,713,662.75, 198,324,854.60 and 78,523,566.75 is: 108,362,522.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,713,662.75 : 198,324,854.60 = 78,523,566.75 : x
  2. Step 2: Convert to fraction form
    143,713,662.75/198,324,854.60 = 78,523,566.75/x
  3. Step 3: Cross multiply
    143,713,662.75x = 198,324,854.60 × 78,523,566.75
  4. Step 4: Simplify right side
    143,713,662.75x = 15,573,174,957,974,526
  5. Step 5: Solve for x
    x = 15,573,174,957,974,526/143,713,662.75
  6. Step 6: Final answer
    x = 108,362,522.12

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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.