Home / 12,459,134.40-18,688,701.60-11,115,441.60

Finding the Fourth Proportional to 12,459,134.40, 18,688,701.60 and 11,115,441.60

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Solution

The fourth proportional to 12,459,134.40, 18,688,701.60 and 11,115,441.60 is: 16,673,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459,134.40 : 18,688,701.60 = 11,115,441.60 : x
  2. Step 2: Convert to fraction form
    12,459,134.40/18,688,701.60 = 11,115,441.60/x
  3. Step 3: Cross multiply
    12,459,134.40x = 18,688,701.60 × 11,115,441.60
  4. Step 4: Simplify right side
    12,459,134.40x = 207,733,171,214,626.56
  5. Step 5: Solve for x
    x = 207,733,171,214,626.56/12,459,134.40
  6. Step 6: Final answer
    x = 16,673,162.40

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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.