Home / 10,922,520.45-15,078,744.65-7,979,032.36

Finding the Fourth Proportional to 10,922,520.45, 15,078,744.65 and 7,979,032.36

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Solution

The fourth proportional to 10,922,520.45, 15,078,744.65 and 7,979,032.36 is: 11,015,204.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,922,520.45 : 15,078,744.65 = 7,979,032.36 : x
  2. Step 2: Convert to fraction form
    10,922,520.45/15,078,744.65 = 7,979,032.36/x
  3. Step 3: Cross multiply
    10,922,520.45x = 15,078,744.65 × 7,979,032.36
  4. Step 4: Simplify right side
    10,922,520.45x = 120,313,791,395,237.98
  5. Step 5: Solve for x
    x = 120,313,791,395,237.98/10,922,520.45
  6. Step 6: Final answer
    x = 11,015,204.04

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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.