Home / 340,086,473.11-469,304,235.07-189,386,901.78

Finding the Fourth Proportional to 340,086,473.11, 469,304,235.07 and 189,386,901.78

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Solution

The fourth proportional to 340,086,473.11, 469,304,235.07 and 189,386,901.78 is: 261,345,516.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,086,473.11 : 469,304,235.07 = 189,386,901.78 : x
  2. Step 2: Convert to fraction form
    340,086,473.11/469,304,235.07 = 189,386,901.78/x
  3. Step 3: Cross multiply
    340,086,473.11x = 469,304,235.07 × 189,386,901.78
  4. Step 4: Simplify right side
    340,086,473.11x = 88,880,075,072,140,128
  5. Step 5: Solve for x
    x = 88,880,075,072,140,128/340,086,473.11
  6. Step 6: Final answer
    x = 261,345,516.80

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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.