Home / 13,457,459.70-20,162,132.55-8,189,705.70

Finding the Fourth Proportional to 13,457,459.70, 20,162,132.55 and 8,189,705.70

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Solution

The fourth proportional to 13,457,459.70, 20,162,132.55 and 8,189,705.70 is: 12,269,918.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457,459.70 : 20,162,132.55 = 8,189,705.70 : x
  2. Step 2: Convert to fraction form
    13,457,459.70/20,162,132.55 = 8,189,705.70/x
  3. Step 3: Cross multiply
    13,457,459.70x = 20,162,132.55 × 8,189,705.70
  4. Step 4: Simplify right side
    13,457,459.70x = 165,121,931,868,890.53
  5. Step 5: Solve for x
    x = 165,121,931,868,890.53/13,457,459.70
  6. Step 6: Final answer
    x = 12,269,918.36

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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.