Home / 19,078,123.20-28,581,136.32-11,273,757.60

Finding the Fourth Proportional to 19,078,123.20, 28,581,136.32 and 11,273,757.60

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Solution

The fourth proportional to 19,078,123.20, 28,581,136.32 and 11,273,757.60 is: 16,889,334.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078,123.20 : 28,581,136.32 = 11,273,757.60 : x
  2. Step 2: Convert to fraction form
    19,078,123.20/28,581,136.32 = 11,273,757.60/x
  3. Step 3: Cross multiply
    19,078,123.20x = 28,581,136.32 × 11,273,757.60
  4. Step 4: Simplify right side
    19,078,123.20x = 322,216,802,804,236
  5. Step 5: Solve for x
    x = 322,216,802,804,236/19,078,123.20
  6. Step 6: Final answer
    x = 16,889,334.42

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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.