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Finding the Fourth Proportional to 12,252,630.80, 18,378,946.20 and 12,252,630.80

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Solution

The fourth proportional to 12,252,630.80, 18,378,946.20 and 12,252,630.80 is: 18,378,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252,630.80 : 18,378,946.20 = 12,252,630.80 : x
  2. Step 2: Convert to fraction form
    12,252,630.80/18,378,946.20 = 12,252,630.80/x
  3. Step 3: Cross multiply
    12,252,630.80x = 18,378,946.20 × 12,252,630.80
  4. Step 4: Simplify right side
    12,252,630.80x = 225,190,442,281,662.97
  5. Step 5: Solve for x
    x = 225,190,442,281,662.97/12,252,630.80
  6. Step 6: Final answer
    x = 18,378,946.20

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1.5x scale

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.