Home / 91,623,137-126,442,546-55,861,641.68

Finding the Fourth Proportional to 91,623,137, 126,442,546 and 55,861,641.68

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Solution

The fourth proportional to 91,623,137, 126,442,546 and 55,861,641.68 is: 77,090,661.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,623,137 : 126,442,546 = 55,861,641.68 : x
  2. Step 2: Convert to fraction form
    91,623,137/126,442,546 = 55,861,641.68/x
  3. Step 3: Cross multiply
    91,623,137x = 126,442,546 × 55,861,641.68
  4. Step 4: Simplify right side
    91,623,137x = 7,063,288,197,758,917
  5. Step 5: Solve for x
    x = 7,063,288,197,758,917/91,623,137
  6. Step 6: Final answer
    x = 77,090,661.04

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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.