Home / 289,935,839.30-400,111,517.42-159,555,647.30

Finding the Fourth Proportional to 289,935,839.30, 400,111,517.42 and 159,555,647.30

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Solution

The fourth proportional to 289,935,839.30, 400,111,517.42 and 159,555,647.30 is: 220,186,825.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,935,839.30 : 400,111,517.42 = 159,555,647.30 : x
  2. Step 2: Convert to fraction form
    289,935,839.30/400,111,517.42 = 159,555,647.30/x
  3. Step 3: Cross multiply
    289,935,839.30x = 400,111,517.42 × 159,555,647.30
  4. Step 4: Simplify right side
    289,935,839.30x = 63,840,052,154,133,336
  5. Step 5: Solve for x
    x = 63,840,052,154,133,336/289,935,839.30
  6. Step 6: Final answer
    x = 220,186,825.84

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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.