Home / 213,561,964.80-320,342,947.20-52,003,900.80

Finding the Fourth Proportional to 213,561,964.80, 320,342,947.20 and 52,003,900.80

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Solution

The fourth proportional to 213,561,964.80, 320,342,947.20 and 52,003,900.80 is: 78,005,851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,561,964.80 : 320,342,947.20 = 52,003,900.80 : x
  2. Step 2: Convert to fraction form
    213,561,964.80/320,342,947.20 = 52,003,900.80/x
  3. Step 3: Cross multiply
    213,561,964.80x = 320,342,947.20 × 52,003,900.80
  4. Step 4: Simplify right side
    213,561,964.80x = 16,659,082,848,168,436
  5. Step 5: Solve for x
    x = 16,659,082,848,168,436/213,561,964.80
  6. Step 6: Final answer
    x = 78,005,851.20

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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.