Home / 418,748,356.46-627,831,662.42-185,451,939.38

Finding the Fourth Proportional to 418,748,356.46, 627,831,662.42 and 185,451,939.38

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Solution

The fourth proportional to 418,748,356.46, 627,831,662.42 and 185,451,939.38 is: 278,049,089.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,748,356.46 : 627,831,662.42 = 185,451,939.38 : x
  2. Step 2: Convert to fraction form
    418,748,356.46/627,831,662.42 = 185,451,939.38/x
  3. Step 3: Cross multiply
    418,748,356.46x = 627,831,662.42 × 185,451,939.38
  4. Step 4: Simplify right side
    418,748,356.46x = 116,432,599,399,958,448
  5. Step 5: Solve for x
    x = 116,432,599,399,958,448/418,748,356.46
  6. Step 6: Final answer
    x = 278,049,089.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.