Home / 10,198,871.91-15,288,690.05-5,076,458.82

Finding the Fourth Proportional to 10,198,871.91, 15,288,690.05 and 5,076,458.82

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Solution

The fourth proportional to 10,198,871.91, 15,288,690.05 and 5,076,458.82 is: 7,609,900.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198,871.91 : 15,288,690.05 = 5,076,458.82 : x
  2. Step 2: Convert to fraction form
    10,198,871.91/15,288,690.05 = 5,076,458.82/x
  3. Step 3: Cross multiply
    10,198,871.91x = 15,288,690.05 × 5,076,458.82
  4. Step 4: Simplify right side
    10,198,871.91x = 77,612,405,425,186.45
  5. Step 5: Solve for x
    x = 77,612,405,425,186.45/10,198,871.91
  6. Step 6: Final answer
    x = 7,609,900.99

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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.