Home / 20,641,779.62-28,483,905.93-11,348,850.50

Finding the Fourth Proportional to 20,641,779.62, 28,483,905.93 and 11,348,850.50

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Solution

The fourth proportional to 20,641,779.62, 28,483,905.93 and 11,348,850.50 is: 15,660,451.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,641,779.62 : 28,483,905.93 = 11,348,850.50 : x
  2. Step 2: Convert to fraction form
    20,641,779.62/28,483,905.93 = 11,348,850.50/x
  3. Step 3: Cross multiply
    20,641,779.62x = 28,483,905.93 × 11,348,850.50
  4. Step 4: Simplify right side
    20,641,779.62x = 323,259,590,055,633.44
  5. Step 5: Solve for x
    x = 323,259,590,055,633.44/20,641,779.62
  6. Step 6: Final answer
    x = 15,660,451.57

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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.