Home / 40,511,989.71-55,906,541.48-21,927,126.76

Finding the Fourth Proportional to 40,511,989.71, 55,906,541.48 and 21,927,126.76

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Solution

The fourth proportional to 40,511,989.71, 55,906,541.48 and 21,927,126.76 is: 30,259,432.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,511,989.71 : 55,906,541.48 = 21,927,126.76 : x
  2. Step 2: Convert to fraction form
    40,511,989.71/55,906,541.48 = 21,927,126.76/x
  3. Step 3: Cross multiply
    40,511,989.71x = 55,906,541.48 × 21,927,126.76
  4. Step 4: Simplify right side
    40,511,989.71x = 1,225,869,821,660,209.50
  5. Step 5: Solve for x
    x = 1,225,869,821,660,209.50/40,511,989.71
  6. Step 6: Final answer
    x = 30,259,432.59

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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.