Home / 21,720,697.46-29,972,814.45-12,553,933.94

Finding the Fourth Proportional to 21,720,697.46, 29,972,814.45 and 12,553,933.94

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Solution

The fourth proportional to 21,720,697.46, 29,972,814.45 and 12,553,933.94 is: 17,323,418.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,720,697.46 : 29,972,814.45 = 12,553,933.94 : x
  2. Step 2: Convert to fraction form
    21,720,697.46/29,972,814.45 = 12,553,933.94/x
  3. Step 3: Cross multiply
    21,720,697.46x = 29,972,814.45 × 12,553,933.94
  4. Step 4: Simplify right side
    21,720,697.46x = 376,276,732,601,177.44
  5. Step 5: Solve for x
    x = 376,276,732,601,177.44/21,720,697.46
  6. Step 6: Final answer
    x = 17,323,418.52

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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.