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Finding the Fourth Proportional to 218,768,337.70, 328,152,506.55 and 218,768,337.70

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Solution

The fourth proportional to 218,768,337.70, 328,152,506.55 and 218,768,337.70 is: 328,152,506.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,768,337.70 : 328,152,506.55 = 218,768,337.70 : x
  2. Step 2: Convert to fraction form
    218,768,337.70/328,152,506.55 = 218,768,337.70/x
  3. Step 3: Cross multiply
    218,768,337.70x = 328,152,506.55 × 218,768,337.70
  4. Step 4: Simplify right side
    218,768,337.70x = 71,789,378,370,031,864
  5. Step 5: Solve for x
    x = 71,789,378,370,031,864/218,768,337.70
  6. Step 6: Final answer
    x = 328,152,506.55

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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.