Home / 400,156,865-552,216,473.70-217,016,513

Finding the Fourth Proportional to 400,156,865, 552,216,473.70 and 217,016,513

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Solution

The fourth proportional to 400,156,865, 552,216,473.70 and 217,016,513 is: 299,482,787.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,156,865 : 552,216,473.70 = 217,016,513 : x
  2. Step 2: Convert to fraction form
    400,156,865/552,216,473.70 = 217,016,513/x
  3. Step 3: Cross multiply
    400,156,865x = 552,216,473.70 × 217,016,513
  4. Step 4: Simplify right side
    400,156,865x = 119,840,093,543,530,224
  5. Step 5: Solve for x
    x = 119,840,093,543,530,224/400,156,865
  6. Step 6: Final answer
    x = 299,482,787.94

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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.