Home / 18,698,568.40-28,039,558.20-8,595,989.20

Finding the Fourth Proportional to 18,698,568.40, 28,039,558.20 and 8,595,989.20

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Solution

The fourth proportional to 18,698,568.40, 28,039,558.20 and 8,595,989.20 is: 12,890,170.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,698,568.40 : 28,039,558.20 = 8,595,989.20 : x
  2. Step 2: Convert to fraction form
    18,698,568.40/28,039,558.20 = 8,595,989.20/x
  3. Step 3: Cross multiply
    18,698,568.40x = 28,039,558.20 × 8,595,989.20
  4. Step 4: Simplify right side
    18,698,568.40x = 241,027,739,459,971.41
  5. Step 5: Solve for x
    x = 241,027,739,459,971.41/18,698,568.40
  6. Step 6: Final answer
    x = 12,890,170.75

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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.