Home / 12,722,920.12-17,563,728.01-7,832,334.32

Finding the Fourth Proportional to 12,722,920.12, 17,563,728.01 and 7,832,334.32

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Solution

The fourth proportional to 12,722,920.12, 17,563,728.01 and 7,832,334.32 is: 10,812,375.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722,920.12 : 17,563,728.01 = 7,832,334.32 : x
  2. Step 2: Convert to fraction form
    12,722,920.12/17,563,728.01 = 7,832,334.32/x
  3. Step 3: Cross multiply
    12,722,920.12x = 17,563,728.01 × 7,832,334.32
  4. Step 4: Simplify right side
    12,722,920.12x = 137,564,989,572,468.84
  5. Step 5: Solve for x
    x = 137,564,989,572,468.84/12,722,920.12
  6. Step 6: Final answer
    x = 10,812,375.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.