Home / 12,327,281.28-18,478,791.28-7,203,208.32

Finding the Fourth Proportional to 12,327,281.28, 18,478,791.28 and 7,203,208.32

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Solution

The fourth proportional to 12,327,281.28, 18,478,791.28 and 7,203,208.32 is: 10,797,724.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,327,281.28 : 18,478,791.28 = 7,203,208.32 : x
  2. Step 2: Convert to fraction form
    12,327,281.28/18,478,791.28 = 7,203,208.32/x
  3. Step 3: Cross multiply
    12,327,281.28x = 18,478,791.28 × 7,203,208.32
  4. Step 4: Simplify right side
    12,327,281.28x = 133,106,583,091,639.47
  5. Step 5: Solve for x
    x = 133,106,583,091,639.47/12,327,281.28
  6. Step 6: Final answer
    x = 10,797,724.18

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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.