Home / 12,929,870-19,394,902.20-5,739,470.84

Finding the Fourth Proportional to 12,929,870, 19,394,902.20 and 5,739,470.84

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Solution

The fourth proportional to 12,929,870, 19,394,902.20 and 5,739,470.84 is: 8,609,249.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929,870 : 19,394,902.20 = 5,739,470.84 : x
  2. Step 2: Convert to fraction form
    12,929,870/19,394,902.20 = 5,739,470.84/x
  3. Step 3: Cross multiply
    12,929,870x = 19,394,902.20 × 5,739,470.84
  4. Step 4: Simplify right side
    12,929,870x = 111,316,475,621,551.84
  5. Step 5: Solve for x
    x = 111,316,475,621,551.84/12,929,870
  6. Step 6: Final answer
    x = 8,609,249.41

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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.