Home / 20,188,839.72-27,860,457.08-11,021,482.47

Finding the Fourth Proportional to 20,188,839.72, 27,860,457.08 and 11,021,482.47

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Solution

The fourth proportional to 20,188,839.72, 27,860,457.08 and 11,021,482.47 is: 15,209,568.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,839.72 : 27,860,457.08 = 11,021,482.47 : x
  2. Step 2: Convert to fraction form
    20,188,839.72/27,860,457.08 = 11,021,482.47/x
  3. Step 3: Cross multiply
    20,188,839.72x = 27,860,457.08 × 11,021,482.47
  4. Step 4: Simplify right side
    20,188,839.72x = 307,063,539,340,961.12
  5. Step 5: Solve for x
    x = 307,063,539,340,961.12/20,188,839.72
  6. Step 6: Final answer
    x = 15,209,568.43

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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.