Home / 28,296,868,108.20-42,445,302,162.30-21,766,521,100.20

Finding the Fourth Proportional to 28,296,868,108.20, 42,445,302,162.30 and 21,766,521,100.20

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Solution

The fourth proportional to 28,296,868,108.20, 42,445,302,162.30 and 21,766,521,100.20 is: 32,649,781,650.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,296,868,108.20 : 42,445,302,162.30 = 21,766,521,100.20 : x
  2. Step 2: Convert to fraction form
    28,296,868,108.20/42,445,302,162.30 = 21,766,521,100.20/x
  3. Step 3: Cross multiply
    28,296,868,108.20x = 42,445,302,162.30 × 21,766,521,100.20
  4. Step 4: Simplify right side
    28,296,868,108.20x = 923,886,565,120,067,764,224
  5. Step 5: Solve for x
    x = 923,886,565,120,067,764,224/28,296,868,108.20
  6. Step 6: Final answer
    x = 32,649,781,650.30

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Double scale
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Similar ratio
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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.