Home / 128,387,993,570.64-192,414,461,265.27-71,725,567,814.15

Finding the Fourth Proportional to 128,387,993,570.64, 192,414,461,265.27 and 71,725,567,814.15

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Solution

The fourth proportional to 128,387,993,570.64, 192,414,461,265.27 and 71,725,567,814.15 is: 107,494,759,487.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,387,993,570.64 : 192,414,461,265.27 = 71,725,567,814.15 : x
  2. Step 2: Convert to fraction form
    128,387,993,570.64/192,414,461,265.27 = 71,725,567,814.15/x
  3. Step 3: Cross multiply
    128,387,993,570.64x = 192,414,461,265.27 × 71,725,567,814.15
  4. Step 4: Simplify right side
    128,387,993,570.64x = 13,801,036,489,904,300,752,896
  5. Step 5: Solve for x
    x = 13,801,036,489,904,300,752,896/128,387,993,570.64
  6. Step 6: Final answer
    x = 107,494,759,487.08

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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.