Home / 124,123,396.64-171,398,601.60-77,793,288.80

Finding the Fourth Proportional to 124,123,396.64, 171,398,601.60 and 77,793,288.80

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Solution

The fourth proportional to 124,123,396.64, 171,398,601.60 and 77,793,288.80 is: 107,422,623.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,123,396.64 : 171,398,601.60 = 77,793,288.80 : x
  2. Step 2: Convert to fraction form
    124,123,396.64/171,398,601.60 = 77,793,288.80/x
  3. Step 3: Cross multiply
    124,123,396.64x = 171,398,601.60 × 77,793,288.80
  4. Step 4: Simplify right side
    124,123,396.64x = 13,333,660,914,184,942
  5. Step 5: Solve for x
    x = 13,333,660,914,184,942/124,123,396.64
  6. Step 6: Final answer
    x = 107,422,623.58

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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.