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Finding the Fourth Proportional to 272,038,511.80, 408,110,911.80 and 108,248,395.60

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Solution

The fourth proportional to 272,038,511.80, 408,110,911.80 and 108,248,395.60 is: 162,393,740.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,038,511.80 : 408,110,911.80 = 108,248,395.60 : x
  2. Step 2: Convert to fraction form
    272,038,511.80/408,110,911.80 = 108,248,395.60/x
  3. Step 3: Cross multiply
    272,038,511.80x = 408,110,911.80 × 108,248,395.60
  4. Step 4: Simplify right side
    272,038,511.80x = 44,177,351,429,203,104
  5. Step 5: Solve for x
    x = 44,177,351,429,203,104/272,038,511.80
  6. Step 6: Final answer
    x = 162,393,740.27

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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.