Home / 21,342,146,661.10-29,442,504,620.66-12,881,265,818.86

Finding the Fourth Proportional to 21,342,146,661.10, 29,442,504,620.66 and 12,881,265,818.86

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Solution

The fourth proportional to 21,342,146,661.10, 29,442,504,620.66 and 12,881,265,818.86 is: 17,770,317,785.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342,146,661.10 : 29,442,504,620.66 = 12,881,265,818.86 : x
  2. Step 2: Convert to fraction form
    21,342,146,661.10/29,442,504,620.66 = 12,881,265,818.86/x
  3. Step 3: Cross multiply
    21,342,146,661.10x = 29,442,504,620.66 × 12,881,265,818.86
  4. Step 4: Simplify right side
    21,342,146,661.10x = 379,256,728,391,735,312,384
  5. Step 5: Solve for x
    x = 379,256,728,391,735,312,384/21,342,146,661.10
  6. Step 6: Final answer
    x = 17,770,317,785.46

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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.