Home / 7,439,728.10-11,159,592.15-3,188,200.10

Finding the Fourth Proportional to 7,439,728.10, 11,159,592.15 and 3,188,200.10

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Solution

The fourth proportional to 7,439,728.10, 11,159,592.15 and 3,188,200.10 is: 4,782,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439,728.10 : 11,159,592.15 = 3,188,200.10 : x
  2. Step 2: Convert to fraction form
    7,439,728.10/11,159,592.15 = 3,188,200.10/x
  3. Step 3: Cross multiply
    7,439,728.10x = 11,159,592.15 × 3,188,200.10
  4. Step 4: Simplify right side
    7,439,728.10x = 35,579,012,808,589.22
  5. Step 5: Solve for x
    x = 35,579,012,808,589.22/7,439,728.10
  6. Step 6: Final answer
    x = 4,782,300.15

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Double scale
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Similar ratio
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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.