Home / 100,509,431.73-138,706,383.81-55,857,285.49

Finding the Fourth Proportional to 100,509,431.73, 138,706,383.81 and 55,857,285.49

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Solution

The fourth proportional to 100,509,431.73, 138,706,383.81 and 55,857,285.49 is: 77,084,925.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,509,431.73 : 138,706,383.81 = 55,857,285.49 : x
  2. Step 2: Convert to fraction form
    100,509,431.73/138,706,383.81 = 55,857,285.49/x
  3. Step 3: Cross multiply
    100,509,431.73x = 138,706,383.81 × 55,857,285.49
  4. Step 4: Simplify right side
    100,509,431.73x = 7,747,762,079,760,684
  5. Step 5: Solve for x
    x = 7,747,762,079,760,684/100,509,431.73
  6. Step 6: Final answer
    x = 77,084,925.73

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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.