Home / 85,200,213.60-127,800,320.40-51,104,008.80

Finding the Fourth Proportional to 85,200,213.60, 127,800,320.40 and 51,104,008.80

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Solution

The fourth proportional to 85,200,213.60, 127,800,320.40 and 51,104,008.80 is: 76,656,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,200,213.60 : 127,800,320.40 = 51,104,008.80 : x
  2. Step 2: Convert to fraction form
    85,200,213.60/127,800,320.40 = 51,104,008.80/x
  3. Step 3: Cross multiply
    85,200,213.60x = 127,800,320.40 × 51,104,008.80
  4. Step 4: Simplify right side
    85,200,213.60x = 6,531,108,698,364,419
  5. Step 5: Solve for x
    x = 6,531,108,698,364,419/85,200,213.60
  6. Step 6: Final answer
    x = 76,656,013.20

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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.