Home / 19,219,012.40-28,821,520.20-9,631,204.40

Finding the Fourth Proportional to 19,219,012.40, 28,821,520.20 and 9,631,204.40

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Solution

The fourth proportional to 19,219,012.40, 28,821,520.20 and 9,631,204.40 is: 14,443,299.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219,012.40 : 28,821,520.20 = 9,631,204.40 : x
  2. Step 2: Convert to fraction form
    19,219,012.40/28,821,520.20 = 9,631,204.40/x
  3. Step 3: Cross multiply
    19,219,012.40x = 28,821,520.20 × 9,631,204.40
  4. Step 4: Simplify right side
    19,219,012.40x = 277,585,952,164,928.88
  5. Step 5: Solve for x
    x = 277,585,952,164,928.88/19,219,012.40
  6. Step 6: Final answer
    x = 14,443,299.50

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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.