Home / 128,387,993,568.64-192,414,461,262.27-71,725,567,812.13

Finding the Fourth Proportional to 128,387,993,568.64, 192,414,461,262.27 and 71,725,567,812.13

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Solution

The fourth proportional to 128,387,993,568.64, 192,414,461,262.27 and 71,725,567,812.13 is: 107,494,759,484.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,387,993,568.64 : 192,414,461,262.27 = 71,725,567,812.13 : x
  2. Step 2: Convert to fraction form
    128,387,993,568.64/192,414,461,262.27 = 71,725,567,812.13/x
  3. Step 3: Cross multiply
    128,387,993,568.64x = 192,414,461,262.27 × 71,725,567,812.13
  4. Step 4: Simplify right side
    128,387,993,568.64x = 13,801,036,489,301,407,301,632
  5. Step 5: Solve for x
    x = 13,801,036,489,301,407,301,632/128,387,993,568.64
  6. Step 6: Final answer
    x = 107,494,759,484.06

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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.