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Finding the Fourth Proportional to 211,552,103.70, 317,328,155.55 and 211,552,103.70

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Solution

The fourth proportional to 211,552,103.70, 317,328,155.55 and 211,552,103.70 is: 317,328,155.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,552,103.70 : 317,328,155.55 = 211,552,103.70 : x
  2. Step 2: Convert to fraction form
    211,552,103.70/317,328,155.55 = 211,552,103.70/x
  3. Step 3: Cross multiply
    211,552,103.70x = 317,328,155.55 × 211,552,103.70
  4. Step 4: Simplify right side
    211,552,103.70x = 67,131,438,869,843,328
  5. Step 5: Solve for x
    x = 67,131,438,869,843,328/211,552,103.70
  6. Step 6: Final answer
    x = 317,328,155.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.