Home / 66,813,887.54-100,227,274.07-20,743,386.86

Finding the Fourth Proportional to 66,813,887.54, 100,227,274.07 and 20,743,386.86

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Solution

The fourth proportional to 66,813,887.54, 100,227,274.07 and 20,743,386.86 is: 31,117,080.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,813,887.54 : 100,227,274.07 = 20,743,386.86 : x
  2. Step 2: Convert to fraction form
    66,813,887.54/100,227,274.07 = 20,743,386.86/x
  3. Step 3: Cross multiply
    66,813,887.54x = 100,227,274.07 × 20,743,386.86
  4. Step 4: Simplify right side
    66,813,887.54x = 2,079,053,119,957,256.50
  5. Step 5: Solve for x
    x = 2,079,053,119,957,256.50/66,813,887.54
  6. Step 6: Final answer
    x = 31,117,080.54

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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.