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Finding the Fourth Proportional to 21,794,652.80, 32,698,977.60 and 9,659,427.20

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Solution

The fourth proportional to 21,794,652.80, 32,698,977.60 and 9,659,427.20 is: 14,492,242.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,794,652.80 : 32,698,977.60 = 9,659,427.20 : x
  2. Step 2: Convert to fraction form
    21,794,652.80/32,698,977.60 = 9,659,427.20/x
  3. Step 3: Cross multiply
    21,794,652.80x = 32,698,977.60 × 9,659,427.20
  4. Step 4: Simplify right side
    21,794,652.80x = 315,853,393,641,630.69
  5. Step 5: Solve for x
    x = 315,853,393,641,630.69/21,794,652.80
  6. Step 6: Final answer
    x = 14,492,242.50

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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.