Home / 20,430,554.77-28,194,358.18-11,263,525.57

Finding the Fourth Proportional to 20,430,554.77, 28,194,358.18 and 11,263,525.57

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Solution

The fourth proportional to 20,430,554.77, 28,194,358.18 and 11,263,525.57 is: 15,543,771.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,430,554.77 : 28,194,358.18 = 11,263,525.57 : x
  2. Step 2: Convert to fraction form
    20,430,554.77/28,194,358.18 = 11,263,525.57/x
  3. Step 3: Cross multiply
    20,430,554.77x = 28,194,358.18 × 11,263,525.57
  4. Step 4: Simplify right side
    20,430,554.77x = 317,567,874,149,196.88
  5. Step 5: Solve for x
    x = 317,567,874,149,196.88/20,430,554.77
  6. Step 6: Final answer
    x = 15,543,771.46

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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.