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Finding the Fourth Proportional to 217,210,004.15, 325,815,006.23 and 217,210,004.15

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Solution

The fourth proportional to 217,210,004.15, 325,815,006.23 and 217,210,004.15 is: 325,815,006.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,210,004.15 : 325,815,006.23 = 217,210,004.15 : x
  2. Step 2: Convert to fraction form
    217,210,004.15/325,815,006.23 = 217,210,004.15/x
  3. Step 3: Cross multiply
    217,210,004.15x = 325,815,006.23 × 217,210,004.15
  4. Step 4: Simplify right side
    217,210,004.15x = 70,770,278,855,350,584
  5. Step 5: Solve for x
    x = 70,770,278,855,350,584/217,210,004.15
  6. Step 6: Final answer
    x = 325,815,006.23

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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.