Home / 7,371,839.84-11,057,012.40-1,979,789.72

Finding the Fourth Proportional to 7,371,839.84, 11,057,012.40 and 1,979,789.72

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Solution

The fourth proportional to 7,371,839.84, 11,057,012.40 and 1,979,789.72 is: 2,969,483.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,371,839.84 : 11,057,012.40 = 1,979,789.72 : x
  2. Step 2: Convert to fraction form
    7,371,839.84/11,057,012.40 = 1,979,789.72/x
  3. Step 3: Cross multiply
    7,371,839.84x = 11,057,012.40 × 1,979,789.72
  4. Step 4: Simplify right side
    7,371,839.84x = 21,890,559,483,432.53
  5. Step 5: Solve for x
    x = 21,890,559,483,432.53/7,371,839.84
  6. Step 6: Final answer
    x = 2,969,483.87

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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.