Home / 263,064,758.80-394,597,138.20-81,330,307.60

Finding the Fourth Proportional to 263,064,758.80, 394,597,138.20 and 81,330,307.60

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Solution

The fourth proportional to 263,064,758.80, 394,597,138.20 and 81,330,307.60 is: 121,995,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,064,758.80 : 394,597,138.20 = 81,330,307.60 : x
  2. Step 2: Convert to fraction form
    263,064,758.80/394,597,138.20 = 81,330,307.60/x
  3. Step 3: Cross multiply
    263,064,758.80x = 394,597,138.20 × 81,330,307.60
  4. Step 4: Simplify right side
    263,064,758.80x = 32,092,706,627,885,708
  5. Step 5: Solve for x
    x = 32,092,706,627,885,708/263,064,758.80
  6. Step 6: Final answer
    x = 121,995,461.40

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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.