Home / 12,642,902.82-18,962,429.55-4,123,225.62

Finding the Fourth Proportional to 12,642,902.82, 18,962,429.55 and 4,123,225.62

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Solution

The fourth proportional to 12,642,902.82, 18,962,429.55 and 4,123,225.62 is: 6,184,210.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,642,902.82 : 18,962,429.55 = 4,123,225.62 : x
  2. Step 2: Convert to fraction form
    12,642,902.82/18,962,429.55 = 4,123,225.62/x
  3. Step 3: Cross multiply
    12,642,902.82x = 18,962,429.55 × 4,123,225.62
  4. Step 4: Simplify right side
    12,642,902.82x = 78,186,375,338,005.08
  5. Step 5: Solve for x
    x = 78,186,375,338,005.08/12,642,902.82
  6. Step 6: Final answer
    x = 6,184,210.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.