Home / 5,581,401.60-8,372,102.40-1,378,905.60

Finding the Fourth Proportional to 5,581,401.60, 8,372,102.40 and 1,378,905.60

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Solution

The fourth proportional to 5,581,401.60, 8,372,102.40 and 1,378,905.60 is: 2,068,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,581,401.60 : 8,372,102.40 = 1,378,905.60 : x
  2. Step 2: Convert to fraction form
    5,581,401.60/8,372,102.40 = 1,378,905.60/x
  3. Step 3: Cross multiply
    5,581,401.60x = 8,372,102.40 × 1,378,905.60
  4. Step 4: Simplify right side
    5,581,401.60x = 11,544,338,883,133.44
  5. Step 5: Solve for x
    x = 11,544,338,883,133.44/5,581,401.60
  6. Step 6: Final answer
    x = 2,068,358.40

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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.