Home / 289,680,379.85-399,746,760.18-164,241,016.64

Finding the Fourth Proportional to 289,680,379.85, 399,746,760.18 and 164,241,016.64

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Solution

The fourth proportional to 289,680,379.85, 399,746,760.18 and 164,241,016.64 is: 226,645,706.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,680,379.85 : 399,746,760.18 = 164,241,016.64 : x
  2. Step 2: Convert to fraction form
    289,680,379.85/399,746,760.18 = 164,241,016.64/x
  3. Step 3: Cross multiply
    289,680,379.85x = 399,746,760.18 × 164,241,016.64
  4. Step 4: Simplify right side
    289,680,379.85x = 65,654,814,288,510,736
  5. Step 5: Solve for x
    x = 65,654,814,288,510,736/289,680,379.85
  6. Step 6: Final answer
    x = 226,645,706.29

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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.