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Finding the Fourth Proportional to 7,662,753.60, 11,488,881.60 and 3,621,177.60

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Solution

The fourth proportional to 7,662,753.60, 11,488,881.60 and 3,621,177.60 is: 5,429,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,662,753.60 : 11,488,881.60 = 3,621,177.60 : x
  2. Step 2: Convert to fraction form
    7,662,753.60/11,488,881.60 = 3,621,177.60/x
  3. Step 3: Cross multiply
    7,662,753.60x = 11,488,881.60 × 3,621,177.60
  4. Step 4: Simplify right side
    7,662,753.60x = 41,603,280,698,972.16
  5. Step 5: Solve for x
    x = 41,603,280,698,972.16/7,662,753.60
  6. Step 6: Final answer
    x = 5,429,285.98

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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.