Home / 7,980,625.20-11,963,064.60-3,933,800.40

Finding the Fourth Proportional to 7,980,625.20, 11,963,064.60 and 3,933,800.40

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Solution

The fourth proportional to 7,980,625.20, 11,963,064.60 and 3,933,800.40 is: 5,896,819.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980,625.20 : 11,963,064.60 = 3,933,800.40 : x
  2. Step 2: Convert to fraction form
    7,980,625.20/11,963,064.60 = 3,933,800.40/x
  3. Step 3: Cross multiply
    7,980,625.20x = 11,963,064.60 × 3,933,800.40
  4. Step 4: Simplify right side
    7,980,625.20x = 47,060,308,308,705.84
  5. Step 5: Solve for x
    x = 47,060,308,308,705.84/7,980,625.20
  6. Step 6: Final answer
    x = 5,896,819.75

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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.