Home / 66,435,910.60-99,644,534.70-21,002,297.80

Finding the Fourth Proportional to 66,435,910.60, 99,644,534.70 and 21,002,297.80

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Solution

The fourth proportional to 66,435,910.60, 99,644,534.70 and 21,002,297.80 is: 31,500,496.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,435,910.60 : 99,644,534.70 = 21,002,297.80 : x
  2. Step 2: Convert to fraction form
    66,435,910.60/99,644,534.70 = 21,002,297.80/x
  3. Step 3: Cross multiply
    66,435,910.60x = 99,644,534.70 × 21,002,297.80
  4. Step 4: Simplify right side
    66,435,910.60x = 2,092,764,191,911,833.75
  5. Step 5: Solve for x
    x = 2,092,764,191,911,833.75/66,435,910.60
  6. Step 6: Final answer
    x = 31,500,496.84

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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.