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Finding the Fourth Proportional to 266,579,137.44, 399,886,251.69 and 69,847,367.90

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Solution

The fourth proportional to 266,579,137.44, 399,886,251.69 and 69,847,367.90 is: 104,775,649.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,579,137.44 : 399,886,251.69 = 69,847,367.90 : x
  2. Step 2: Convert to fraction form
    266,579,137.44/399,886,251.69 = 69,847,367.90/x
  3. Step 3: Cross multiply
    266,579,137.44x = 399,886,251.69 × 69,847,367.90
  4. Step 4: Simplify right side
    266,579,137.44x = 27,931,002,137,943,992
  5. Step 5: Solve for x
    x = 27,931,002,137,943,992/266,579,137.44
  6. Step 6: Final answer
    x = 104,775,649.01

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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.