Home / 15,021,271.08-20,729,359.60-8,145,751.32

Finding the Fourth Proportional to 15,021,271.08, 20,729,359.60 and 8,145,751.32

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Solution

The fourth proportional to 15,021,271.08, 20,729,359.60 and 8,145,751.32 is: 11,241,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,021,271.08 : 20,729,359.60 = 8,145,751.32 : x
  2. Step 2: Convert to fraction form
    15,021,271.08/20,729,359.60 = 8,145,751.32/x
  3. Step 3: Cross multiply
    15,021,271.08x = 20,729,359.60 × 8,145,751.32
  4. Step 4: Simplify right side
    15,021,271.08x = 168,856,208,324,454.69
  5. Step 5: Solve for x
    x = 168,856,208,324,454.69/15,021,271.08
  6. Step 6: Final answer
    x = 11,241,139.81

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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.