Home / 15,015,183.17-20,720,678.45-8,488,814.61

Finding the Fourth Proportional to 15,015,183.17, 20,720,678.45 and 8,488,814.61

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Solution

The fourth proportional to 15,015,183.17, 20,720,678.45 and 8,488,814.61 is: 11,714,409.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,015,183.17 : 20,720,678.45 = 8,488,814.61 : x
  2. Step 2: Convert to fraction form
    15,015,183.17/20,720,678.45 = 8,488,814.61/x
  3. Step 3: Cross multiply
    15,015,183.17x = 20,720,678.45 × 8,488,814.61
  4. Step 4: Simplify right side
    15,015,183.17x = 175,893,997,990,730.62
  5. Step 5: Solve for x
    x = 175,893,997,990,730.62/15,015,183.17
  6. Step 6: Final answer
    x = 11,714,409.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.