Home / 12,129,361.60-18,188,793.60-4,938,505.60

Finding the Fourth Proportional to 12,129,361.60, 18,188,793.60 and 4,938,505.60

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Solution

The fourth proportional to 12,129,361.60, 18,188,793.60 and 4,938,505.60 is: 7,405,621.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,361.60 : 18,188,793.60 = 4,938,505.60 : x
  2. Step 2: Convert to fraction form
    12,129,361.60/18,188,793.60 = 4,938,505.60/x
  3. Step 3: Cross multiply
    12,129,361.60x = 18,188,793.60 × 4,938,505.60
  4. Step 4: Simplify right side
    12,129,361.60x = 89,825,459,050,844.16
  5. Step 5: Solve for x
    x = 89,825,459,050,844.16/12,129,361.60
  6. Step 6: Final answer
    x = 7,405,621.34

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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.