Home / 21,872,246.85-30,184,617.65-12,579,819.57

Finding the Fourth Proportional to 21,872,246.85, 30,184,617.65 and 12,579,819.57

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Solution

The fourth proportional to 21,872,246.85, 30,184,617.65 and 12,579,819.57 is: 17,360,678.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,872,246.85 : 30,184,617.65 = 12,579,819.57 : x
  2. Step 2: Convert to fraction form
    21,872,246.85/30,184,617.65 = 12,579,819.57/x
  3. Step 3: Cross multiply
    21,872,246.85x = 30,184,617.65 × 12,579,819.57
  4. Step 4: Simplify right side
    21,872,246.85x = 379,717,043,763,538.31
  5. Step 5: Solve for x
    x = 379,717,043,763,538.31/21,872,246.85
  6. Step 6: Final answer
    x = 17,360,678.41

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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.