Home / 7,879,725.60-11,819,588.40-2,831,200.80

Finding the Fourth Proportional to 7,879,725.60, 11,819,588.40 and 2,831,200.80

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Solution

The fourth proportional to 7,879,725.60, 11,819,588.40 and 2,831,200.80 is: 4,246,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879,725.60 : 11,819,588.40 = 2,831,200.80 : x
  2. Step 2: Convert to fraction form
    7,879,725.60/11,819,588.40 = 2,831,200.80/x
  3. Step 3: Cross multiply
    7,879,725.60x = 11,819,588.40 × 2,831,200.80
  4. Step 4: Simplify right side
    7,879,725.60x = 33,463,628,133,750.72
  5. Step 5: Solve for x
    x = 33,463,628,133,750.72/7,879,725.60
  6. Step 6: Final answer
    x = 4,246,801.20

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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.