Home / 151,346,422.35-208,858,060.98-81,731,797.13

Finding the Fourth Proportional to 151,346,422.35, 208,858,060.98 and 81,731,797.13

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Solution

The fourth proportional to 151,346,422.35, 208,858,060.98 and 81,731,797.13 is: 112,789,879.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,346,422.35 : 208,858,060.98 = 81,731,797.13 : x
  2. Step 2: Convert to fraction form
    151,346,422.35/208,858,060.98 = 81,731,797.13/x
  3. Step 3: Cross multiply
    151,346,422.35x = 208,858,060.98 × 81,731,797.13
  4. Step 4: Simplify right side
    151,346,422.35x = 17,070,344,669,504,672
  5. Step 5: Solve for x
    x = 17,070,344,669,504,672/151,346,422.35
  6. Step 6: Final answer
    x = 112,789,879.04

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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.