Home / 3,120,133.60-4,680,200.40-1,776,440.80

Finding the Fourth Proportional to 3,120,133.60, 4,680,200.40 and 1,776,440.80

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Solution

The fourth proportional to 3,120,133.60, 4,680,200.40 and 1,776,440.80 is: 2,664,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,133.60 : 4,680,200.40 = 1,776,440.80 : x
  2. Step 2: Convert to fraction form
    3,120,133.60/4,680,200.40 = 1,776,440.80/x
  3. Step 3: Cross multiply
    3,120,133.60x = 4,680,200.40 × 1,776,440.80
  4. Step 4: Simplify right side
    3,120,133.60x = 8,314,098,942,736.32
  5. Step 5: Solve for x
    x = 8,314,098,942,736.32/3,120,133.60
  6. Step 6: Final answer
    x = 2,664,661.20

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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.