Home / 66,738,833.40-100,108,250.10-21,305,220.60

Finding the Fourth Proportional to 66,738,833.40, 100,108,250.10 and 21,305,220.60

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Solution

The fourth proportional to 66,738,833.40, 100,108,250.10 and 21,305,220.60 is: 31,957,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,738,833.40 : 100,108,250.10 = 21,305,220.60 : x
  2. Step 2: Convert to fraction form
    66,738,833.40/100,108,250.10 = 21,305,220.60/x
  3. Step 3: Cross multiply
    66,738,833.40x = 100,108,250.10 × 21,305,220.60
  4. Step 4: Simplify right side
    66,738,833.40x = 2,132,828,352,260,472
  5. Step 5: Solve for x
    x = 2,132,828,352,260,472/66,738,833.40
  6. Step 6: Final answer
    x = 31,957,830.90

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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.