Home / 21,872,282.94-30,184,667.44-12,579,855.60

Finding the Fourth Proportional to 21,872,282.94, 30,184,667.44 and 12,579,855.60

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Solution

The fourth proportional to 21,872,282.94, 30,184,667.44 and 12,579,855.60 is: 17,360,728.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,872,282.94 : 30,184,667.44 = 12,579,855.60 : x
  2. Step 2: Convert to fraction form
    21,872,282.94/30,184,667.44 = 12,579,855.60/x
  3. Step 3: Cross multiply
    21,872,282.94x = 30,184,667.44 × 12,579,855.60
  4. Step 4: Simplify right side
    21,872,282.94x = 379,718,757,669,898.38
  5. Step 5: Solve for x
    x = 379,718,757,669,898.38/21,872,282.94
  6. Step 6: Final answer
    x = 17,360,728.13

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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.