Home / 12,357,419.20-18,508,135.20-7,318,571.20

Finding the Fourth Proportional to 12,357,419.20, 18,508,135.20 and 7,318,571.20

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Solution

The fourth proportional to 12,357,419.20, 18,508,135.20 and 7,318,571.20 is: 10,961,277.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357,419.20 : 18,508,135.20 = 7,318,571.20 : x
  2. Step 2: Convert to fraction form
    12,357,419.20/18,508,135.20 = 7,318,571.20/x
  3. Step 3: Cross multiply
    12,357,419.20x = 18,508,135.20 × 7,318,571.20
  4. Step 4: Simplify right side
    12,357,419.20x = 135,453,105,240,426.23
  5. Step 5: Solve for x
    x = 135,453,105,240,426.23/12,357,419.20
  6. Step 6: Final answer
    x = 10,961,277.84

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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.