Home / 340,086,474.11-469,304,236.45-189,386,902.78

Finding the Fourth Proportional to 340,086,474.11, 469,304,236.45 and 189,386,902.78

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Solution

The fourth proportional to 340,086,474.11, 469,304,236.45 and 189,386,902.78 is: 261,345,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,086,474.11 : 469,304,236.45 = 189,386,902.78 : x
  2. Step 2: Convert to fraction form
    340,086,474.11/469,304,236.45 = 189,386,902.78/x
  3. Step 3: Cross multiply
    340,086,474.11x = 469,304,236.45 × 189,386,902.78
  4. Step 4: Simplify right side
    340,086,474.11x = 88,880,075,802,798,288
  5. Step 5: Solve for x
    x = 88,880,075,802,798,288/340,086,474.11
  6. Step 6: Final answer
    x = 261,345,518.18

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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.