Home / 280,269,347.94-386,764,203.81-154,818,843.95

Finding the Fourth Proportional to 280,269,347.94, 386,764,203.81 and 154,818,843.95

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Solution

The fourth proportional to 280,269,347.94, 386,764,203.81 and 154,818,843.95 is: 213,645,863.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,269,347.94 : 386,764,203.81 = 154,818,843.95 : x
  2. Step 2: Convert to fraction form
    280,269,347.94/386,764,203.81 = 154,818,843.95/x
  3. Step 3: Cross multiply
    280,269,347.94x = 386,764,203.81 × 154,818,843.95
  4. Step 4: Simplify right side
    280,269,347.94x = 59,878,386,916,653,864
  5. Step 5: Solve for x
    x = 59,878,386,916,653,864/280,269,347.94
  6. Step 6: Final answer
    x = 213,645,863.73

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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.