Home / 21,720,758.96-29,972,899.32-12,553,995.44

Finding the Fourth Proportional to 21,720,758.96, 29,972,899.32 and 12,553,995.44

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Solution

The fourth proportional to 21,720,758.96, 29,972,899.32 and 12,553,995.44 is: 17,323,503.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,720,758.96 : 29,972,899.32 = 12,553,995.44 : x
  2. Step 2: Convert to fraction form
    21,720,758.96/29,972,899.32 = 12,553,995.44/x
  3. Step 3: Cross multiply
    21,720,758.96x = 29,972,899.32 × 12,553,995.44
  4. Step 4: Simplify right side
    21,720,758.96x = 376,279,641,386,859.06
  5. Step 5: Solve for x
    x = 376,279,641,386,859.06/21,720,758.96
  6. Step 6: Final answer
    x = 17,323,503.39

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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.