Home / 85,865,885,258.36-128,857,661,382.54-29,968,372,816.52

Finding the Fourth Proportional to 85,865,885,258.36, 128,857,661,382.54 and 29,968,372,816.52

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Solution

The fourth proportional to 85,865,885,258.36, 128,857,661,382.54 and 29,968,372,816.52 is: 44,973,092,922.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,865,885,258.36 : 128,857,661,382.54 = 29,968,372,816.52 : x
  2. Step 2: Convert to fraction form
    85,865,885,258.36/128,857,661,382.54 = 29,968,372,816.52/x
  3. Step 3: Cross multiply
    85,865,885,258.36x = 128,857,661,382.54 × 29,968,372,816.52
  4. Step 4: Simplify right side
    85,865,885,258.36x = 3,861,654,436,576,850,608,128
  5. Step 5: Solve for x
    x = 3,861,654,436,576,850,608,128/85,865,885,258.36
  6. Step 6: Final answer
    x = 44,973,092,922.27

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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.