Home / 39,860,650.80-55,007,697.78-21,525,934.68

Finding the Fourth Proportional to 39,860,650.80, 55,007,697.78 and 21,525,934.68

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Solution

The fourth proportional to 39,860,650.80, 55,007,697.78 and 21,525,934.68 is: 29,705,789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,860,650.80 : 55,007,697.78 = 21,525,934.68 : x
  2. Step 2: Convert to fraction form
    39,860,650.80/55,007,697.78 = 21,525,934.68/x
  3. Step 3: Cross multiply
    39,860,650.80x = 55,007,697.78 × 21,525,934.68
  4. Step 4: Simplify right side
    39,860,650.80x = 1,184,092,109,309,461
  5. Step 5: Solve for x
    x = 1,184,092,109,309,461/39,860,650.80
  6. Step 6: Final answer
    x = 29,705,789.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.