Home / 400,156,865.50-552,216,474.40-217,016,513.50

Finding the Fourth Proportional to 400,156,865.50, 552,216,474.40 and 217,016,513.50

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Solution

The fourth proportional to 400,156,865.50, 552,216,474.40 and 217,016,513.50 is: 299,482,788.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,156,865.50 : 552,216,474.40 = 217,016,513.50 : x
  2. Step 2: Convert to fraction form
    400,156,865.50/552,216,474.40 = 217,016,513.50/x
  3. Step 3: Cross multiply
    400,156,865.50x = 552,216,474.40 × 217,016,513.50
  4. Step 4: Simplify right side
    400,156,865.50x = 119,840,093,971,550,000
  5. Step 5: Solve for x
    x = 119,840,093,971,550,000/400,156,865.50
  6. Step 6: Final answer
    x = 299,482,788.64

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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.