Home / 18,439,313.70-27,658,970.55-7,800,363.30

Finding the Fourth Proportional to 18,439,313.70, 27,658,970.55 and 7,800,363.30

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Solution

The fourth proportional to 18,439,313.70, 27,658,970.55 and 7,800,363.30 is: 11,700,544.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439,313.70 : 27,658,970.55 = 7,800,363.30 : x
  2. Step 2: Convert to fraction form
    18,439,313.70/27,658,970.55 = 7,800,363.30/x
  3. Step 3: Cross multiply
    18,439,313.70x = 27,658,970.55 × 7,800,363.30
  4. Step 4: Simplify right side
    18,439,313.70x = 215,750,018,794,000.81
  5. Step 5: Solve for x
    x = 215,750,018,794,000.81/18,439,313.70
  6. Step 6: Final answer
    x = 11,700,544.95

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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.