Home / 661,173,490.80-991,760,236.20-298,376,434.80

Finding the Fourth Proportional to 661,173,490.80, 991,760,236.20 and 298,376,434.80

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Solution

The fourth proportional to 661,173,490.80, 991,760,236.20 and 298,376,434.80 is: 447,564,652.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,173,490.80 : 991,760,236.20 = 298,376,434.80 : x
  2. Step 2: Convert to fraction form
    661,173,490.80/991,760,236.20 = 298,376,434.80/x
  3. Step 3: Cross multiply
    661,173,490.80x = 991,760,236.20 × 298,376,434.80
  4. Step 4: Simplify right side
    661,173,490.80x = 295,917,883,453,761,920
  5. Step 5: Solve for x
    x = 295,917,883,453,761,920/661,173,490.80
  6. Step 6: Final answer
    x = 447,564,652.20

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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.