Home / 20,760,322.32-31,141,331.85-7,122,846.42

Finding the Fourth Proportional to 20,760,322.32, 31,141,331.85 and 7,122,846.42

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Solution

The fourth proportional to 20,760,322.32, 31,141,331.85 and 7,122,846.42 is: 10,684,560.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760,322.32 : 31,141,331.85 = 7,122,846.42 : x
  2. Step 2: Convert to fraction form
    20,760,322.32/31,141,331.85 = 7,122,846.42/x
  3. Step 3: Cross multiply
    20,760,322.32x = 31,141,331.85 × 7,122,846.42
  4. Step 4: Simplify right side
    20,760,322.32x = 221,814,924,081,804.50
  5. Step 5: Solve for x
    x = 221,814,924,081,804.50/20,760,322.32
  6. Step 6: Final answer
    x = 10,684,560.70

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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.