Home / 215,288,064,043.20-322,932,096,064.80-127,128,379,435.20

Finding the Fourth Proportional to 215,288,064,043.20, 322,932,096,064.80 and 127,128,379,435.20

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Solution

The fourth proportional to 215,288,064,043.20, 322,932,096,064.80 and 127,128,379,435.20 is: 190,692,569,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,288,064,043.20 : 322,932,096,064.80 = 127,128,379,435.20 : x
  2. Step 2: Convert to fraction form
    215,288,064,043.20/322,932,096,064.80 = 127,128,379,435.20/x
  3. Step 3: Cross multiply
    215,288,064,043.20x = 322,932,096,064.80 × 127,128,379,435.20
  4. Step 4: Simplify right side
    215,288,064,043.20x = 41,053,834,040,330,346,823,680
  5. Step 5: Solve for x
    x = 41,053,834,040,330,346,823,680/215,288,064,043.20
  6. Step 6: Final answer
    x = 190,692,569,152.80

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1.5x scale

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.