Home / 40,530,900-55,932,558.84-21,946,034.60

Finding the Fourth Proportional to 40,530,900, 55,932,558.84 and 21,946,034.60

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Solution

The fourth proportional to 40,530,900, 55,932,558.84 and 21,946,034.60 is: 30,285,482.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,530,900 : 55,932,558.84 = 21,946,034.60 : x
  2. Step 2: Convert to fraction form
    40,530,900/55,932,558.84 = 21,946,034.60/x
  3. Step 3: Cross multiply
    40,530,900x = 55,932,558.84 × 21,946,034.60
  4. Step 4: Simplify right side
    40,530,900x = 1,227,497,871,569,176
  5. Step 5: Solve for x
    x = 1,227,497,871,569,176/40,530,900
  6. Step 6: Final answer
    x = 30,285,482.72

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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.