Home / 91,003,603.20-136,505,404.80-39,985,267.20

Finding the Fourth Proportional to 91,003,603.20, 136,505,404.80 and 39,985,267.20

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Solution

The fourth proportional to 91,003,603.20, 136,505,404.80 and 39,985,267.20 is: 59,977,900.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,003,603.20 : 136,505,404.80 = 39,985,267.20 : x
  2. Step 2: Convert to fraction form
    91,003,603.20/136,505,404.80 = 39,985,267.20/x
  3. Step 3: Cross multiply
    91,003,603.20x = 136,505,404.80 × 39,985,267.20
  4. Step 4: Simplify right side
    91,003,603.20x = 5,458,205,085,172,163
  5. Step 5: Solve for x
    x = 5,458,205,085,172,163/91,003,603.20
  6. Step 6: Final answer
    x = 59,977,900.80

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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.