Home / 85,293,150.60-127,939,725.90-69,987,649.80

Finding the Fourth Proportional to 85,293,150.60, 127,939,725.90 and 69,987,649.80

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Solution

The fourth proportional to 85,293,150.60, 127,939,725.90 and 69,987,649.80 is: 104,981,474.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293,150.60 : 127,939,725.90 = 69,987,649.80 : x
  2. Step 2: Convert to fraction form
    85,293,150.60/127,939,725.90 = 69,987,649.80/x
  3. Step 3: Cross multiply
    85,293,150.60x = 127,939,725.90 × 69,987,649.80
  4. Step 4: Simplify right side
    85,293,150.60x = 8,954,200,731,797,190
  5. Step 5: Solve for x
    x = 8,954,200,731,797,190/85,293,150.60
  6. Step 6: Final answer
    x = 104,981,474.70

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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.