Home / 18,683,478.40-28,025,217.60-11,471,627.20

Finding the Fourth Proportional to 18,683,478.40, 28,025,217.60 and 11,471,627.20

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Solution

The fourth proportional to 18,683,478.40, 28,025,217.60 and 11,471,627.20 is: 17,207,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,478.40 : 28,025,217.60 = 11,471,627.20 : x
  2. Step 2: Convert to fraction form
    18,683,478.40/28,025,217.60 = 11,471,627.20/x
  3. Step 3: Cross multiply
    18,683,478.40x = 28,025,217.60 × 11,471,627.20
  4. Step 4: Simplify right side
    18,683,478.40x = 321,494,848,506,078.69
  5. Step 5: Solve for x
    x = 321,494,848,506,078.69/18,683,478.40
  6. Step 6: Final answer
    x = 17,207,440.80

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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.