Home / 21,860,003.70-32,790,005.55-21,230,147.70

Finding the Fourth Proportional to 21,860,003.70, 32,790,005.55 and 21,230,147.70

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Solution

The fourth proportional to 21,860,003.70, 32,790,005.55 and 21,230,147.70 is: 31,845,221.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860,003.70 : 32,790,005.55 = 21,230,147.70 : x
  2. Step 2: Convert to fraction form
    21,860,003.70/32,790,005.55 = 21,230,147.70/x
  3. Step 3: Cross multiply
    21,860,003.70x = 32,790,005.55 × 21,230,147.70
  4. Step 4: Simplify right side
    21,860,003.70x = 696,136,660,910,319.75
  5. Step 5: Solve for x
    x = 696,136,660,910,319.75/21,860,003.70
  6. Step 6: Final answer
    x = 31,845,221.55

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1.5x scale

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.