Home / 21,872,224.12-30,184,586.35-12,579,796.78

Finding the Fourth Proportional to 21,872,224.12, 30,184,586.35 and 12,579,796.78

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Solution

The fourth proportional to 21,872,224.12, 30,184,586.35 and 12,579,796.78 is: 17,360,647.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,872,224.12 : 30,184,586.35 = 12,579,796.78 : x
  2. Step 2: Convert to fraction form
    21,872,224.12/30,184,586.35 = 12,579,796.78/x
  3. Step 3: Cross multiply
    21,872,224.12x = 30,184,586.35 × 12,579,796.78
  4. Step 4: Simplify right side
    21,872,224.12x = 379,715,961,957,540.06
  5. Step 5: Solve for x
    x = 379,715,961,957,540.06/21,872,224.12
  6. Step 6: Final answer
    x = 17,360,647.00

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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.