Home / 21,080,220,944.22-31,619,167,513.82-15,413,616,368.52

Finding the Fourth Proportional to 21,080,220,944.22, 31,619,167,513.82 and 15,413,616,368.52

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Solution

The fourth proportional to 21,080,220,944.22, 31,619,167,513.82 and 15,413,616,368.52 is: 23,119,573,520.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080,220,944.22 : 31,619,167,513.82 = 15,413,616,368.52 : x
  2. Step 2: Convert to fraction form
    21,080,220,944.22/31,619,167,513.82 = 15,413,616,368.52/x
  3. Step 3: Cross multiply
    21,080,220,944.22x = 31,619,167,513.82 × 15,413,616,368.52
  4. Step 4: Simplify right side
    21,080,220,944.22x = 487,365,717,949,991,813,120
  5. Step 5: Solve for x
    x = 487,365,717,949,991,813,120/21,080,220,944.22
  6. Step 6: Final answer
    x = 23,119,573,520.58

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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.