Home / 18,784,150.40-28,143,566.40-8,666,019.20

Finding the Fourth Proportional to 18,784,150.40, 28,143,566.40 and 8,666,019.20

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Solution

The fourth proportional to 18,784,150.40, 28,143,566.40 and 8,666,019.20 is: 12,983,961.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784,150.40 : 28,143,566.40 = 8,666,019.20 : x
  2. Step 2: Convert to fraction form
    18,784,150.40/28,143,566.40 = 8,666,019.20/x
  3. Step 3: Cross multiply
    18,784,150.40x = 28,143,566.40 × 8,666,019.20
  4. Step 4: Simplify right side
    18,784,150.40x = 243,892,686,778,874.84
  5. Step 5: Solve for x
    x = 243,892,686,778,874.84/18,784,150.40
  6. Step 6: Final answer
    x = 12,983,961.56

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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.