Home / 21,872,221.68-30,184,582.98-12,579,794.34

Finding the Fourth Proportional to 21,872,221.68, 30,184,582.98 and 12,579,794.34

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Solution

The fourth proportional to 21,872,221.68, 30,184,582.98 and 12,579,794.34 is: 17,360,643.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,872,221.68 : 30,184,582.98 = 12,579,794.34 : x
  2. Step 2: Convert to fraction form
    21,872,221.68/30,184,582.98 = 12,579,794.34/x
  3. Step 3: Cross multiply
    21,872,221.68x = 30,184,582.98 × 12,579,794.34
  4. Step 4: Simplify right side
    21,872,221.68x = 379,715,845,976,141.44
  5. Step 5: Solve for x
    x = 379,715,845,976,141.44/21,872,221.68
  6. Step 6: Final answer
    x = 17,360,643.63

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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.