Home / 20,245,089.75-27,938,223.87-11,077,732.50

Finding the Fourth Proportional to 20,245,089.75, 27,938,223.87 and 11,077,732.50

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Solution

The fourth proportional to 20,245,089.75, 27,938,223.87 and 11,077,732.50 is: 15,287,270.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245,089.75 : 27,938,223.87 = 11,077,732.50 : x
  2. Step 2: Convert to fraction form
    20,245,089.75/27,938,223.87 = 11,077,732.50/x
  3. Step 3: Cross multiply
    20,245,089.75x = 27,938,223.87 × 11,077,732.50
  4. Step 4: Simplify right side
    20,245,089.75x = 309,492,170,556,974.81
  5. Step 5: Solve for x
    x = 309,492,170,556,974.81/20,245,089.75
  6. Step 6: Final answer
    x = 15,287,270.86

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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.