Home / 13,391,921.52-20,090,467.80-5,715,454.32

Finding the Fourth Proportional to 13,391,921.52, 20,090,467.80 and 5,715,454.32

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Solution

The fourth proportional to 13,391,921.52, 20,090,467.80 and 5,715,454.32 is: 8,574,284.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391,921.52 : 20,090,467.80 = 5,715,454.32 : x
  2. Step 2: Convert to fraction form
    13,391,921.52/20,090,467.80 = 5,715,454.32/x
  3. Step 3: Cross multiply
    13,391,921.52x = 20,090,467.80 × 5,715,454.32
  4. Step 4: Simplify right side
    13,391,921.52x = 114,826,150,978,330.91
  5. Step 5: Solve for x
    x = 114,826,150,978,330.91/13,391,921.52
  6. Step 6: Final answer
    x = 8,574,284.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.