Home / 21,482,792.91-29,646,893.77-13,227,618.78

Finding the Fourth Proportional to 21,482,792.91, 29,646,893.77 and 13,227,618.78

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Solution

The fourth proportional to 21,482,792.91, 29,646,893.77 and 13,227,618.78 is: 18,254,507.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482,792.91 : 29,646,893.77 = 13,227,618.78 : x
  2. Step 2: Convert to fraction form
    21,482,792.91/29,646,893.77 = 13,227,618.78/x
  3. Step 3: Cross multiply
    21,482,792.91x = 29,646,893.77 × 13,227,618.78
  4. Step 4: Simplify right side
    21,482,792.91x = 392,157,808,767,647.94
  5. Step 5: Solve for x
    x = 392,157,808,767,647.94/21,482,792.91
  6. Step 6: Final answer
    x = 18,254,507.71

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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.