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Finding the Fourth Proportional to 7,879,230.72, 11,818,846.72 and 1,895,598.72

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Solution

The fourth proportional to 7,879,230.72, 11,818,846.72 and 1,895,598.72 is: 2,843,398.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879,230.72 : 11,818,846.72 = 1,895,598.72 : x
  2. Step 2: Convert to fraction form
    7,879,230.72/11,818,846.72 = 1,895,598.72/x
  3. Step 3: Cross multiply
    7,879,230.72x = 11,818,846.72 × 1,895,598.72
  4. Step 4: Simplify right side
    7,879,230.72x = 22,403,790,714,308.20
  5. Step 5: Solve for x
    x = 22,403,790,714,308.20/7,879,230.72
  6. Step 6: Final answer
    x = 2,843,398.23

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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.