Home / 85,824,858.60-128,737,287.91-25,240,584.60

Finding the Fourth Proportional to 85,824,858.60, 128,737,287.91 and 25,240,584.60

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Solution

The fourth proportional to 85,824,858.60, 128,737,287.91 and 25,240,584.60 is: 37,860,876.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,824,858.60 : 128,737,287.91 = 25,240,584.60 : x
  2. Step 2: Convert to fraction form
    85,824,858.60/128,737,287.91 = 25,240,584.60/x
  3. Step 3: Cross multiply
    85,824,858.60x = 128,737,287.91 × 25,240,584.60
  4. Step 4: Simplify right side
    85,824,858.60x = 3,249,404,406,556,611
  5. Step 5: Solve for x
    x = 3,249,404,406,556,611/85,824,858.60
  6. Step 6: Final answer
    x = 37,860,876.90

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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.