Home / 15,045,211,067.72-20,761,157,152.40-8,857,307,811.15

Finding the Fourth Proportional to 15,045,211,067.72, 20,761,157,152.40 and 8,857,307,811.15

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Solution

The fourth proportional to 15,045,211,067.72, 20,761,157,152.40 and 8,857,307,811.15 is: 12,222,358,236.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,045,211,067.72 : 20,761,157,152.40 = 8,857,307,811.15 : x
  2. Step 2: Convert to fraction form
    15,045,211,067.72/20,761,157,152.40 = 8,857,307,811.15/x
  3. Step 3: Cross multiply
    15,045,211,067.72x = 20,761,157,152.40 × 8,857,307,811.15
  4. Step 4: Simplify right side
    15,045,211,067.72x = 183,887,959,414,420,930,560
  5. Step 5: Solve for x
    x = 183,887,959,414,420,930,560/15,045,211,067.72
  6. Step 6: Final answer
    x = 12,222,358,236.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.