Home / 340,086,374.08-469,304,099.78-189,386,803.96

Finding the Fourth Proportional to 340,086,374.08, 469,304,099.78 and 189,386,803.96

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Solution

The fourth proportional to 340,086,374.08, 469,304,099.78 and 189,386,803.96 is: 261,345,382.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,086,374.08 : 469,304,099.78 = 189,386,803.96 : x
  2. Step 2: Convert to fraction form
    340,086,374.08/469,304,099.78 = 189,386,803.96/x
  3. Step 3: Cross multiply
    340,086,374.08x = 469,304,099.78 × 189,386,803.96
  4. Step 4: Simplify right side
    340,086,374.08x = 88,880,003,540,538,944
  5. Step 5: Solve for x
    x = 88,880,003,540,538,944/340,086,374.08
  6. Step 6: Final answer
    x = 261,345,382.57

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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.