Home / 21,216,261,841.26-29,278,470,377.20-11,571,015,129.35

Finding the Fourth Proportional to 21,216,261,841.26, 29,278,470,377.20 and 11,571,015,129.35

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Solution

The fourth proportional to 21,216,261,841.26, 29,278,470,377.20 and 11,571,015,129.35 is: 15,968,016,714.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,216,261,841.26 : 29,278,470,377.20 = 11,571,015,129.35 : x
  2. Step 2: Convert to fraction form
    21,216,261,841.26/29,278,470,377.20 = 11,571,015,129.35/x
  3. Step 3: Cross multiply
    21,216,261,841.26x = 29,278,470,377.20 × 11,571,015,129.35
  4. Step 4: Simplify right side
    21,216,261,841.26x = 338,781,623,698,749,128,704
  5. Step 5: Solve for x
    x = 338,781,623,698,749,128,704/21,216,261,841.26
  6. Step 6: Final answer
    x = 15,968,016,714.42

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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.