Home / 12,955,315.92-19,419,968.52-4,429,821.84

Finding the Fourth Proportional to 12,955,315.92, 19,419,968.52 and 4,429,821.84

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Solution

The fourth proportional to 12,955,315.92, 19,419,968.52 and 4,429,821.84 is: 6,640,285.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955,315.92 : 19,419,968.52 = 4,429,821.84 : x
  2. Step 2: Convert to fraction form
    12,955,315.92/19,419,968.52 = 4,429,821.84/x
  3. Step 3: Cross multiply
    12,955,315.92x = 19,419,968.52 × 4,429,821.84
  4. Step 4: Simplify right side
    12,955,315.92x = 86,027,000,682,008.47
  5. Step 5: Solve for x
    x = 86,027,000,682,008.47/12,955,315.92
  6. Step 6: Final answer
    x = 6,640,285.83

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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.