Home / 19,119,136.28-28,690,662.10-7,759,584.88

Finding the Fourth Proportional to 19,119,136.28, 28,690,662.10 and 7,759,584.88

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Solution

The fourth proportional to 19,119,136.28, 28,690,662.10 and 7,759,584.88 is: 11,644,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119,136.28 : 28,690,662.10 = 7,759,584.88 : x
  2. Step 2: Convert to fraction form
    19,119,136.28/28,690,662.10 = 7,759,584.88/x
  3. Step 3: Cross multiply
    19,119,136.28x = 28,690,662.10 × 7,759,584.88
  4. Step 4: Simplify right side
    19,119,136.28x = 222,627,627,828,349.06
  5. Step 5: Solve for x
    x = 222,627,627,828,349.06/19,119,136.28
  6. Step 6: Final answer
    x = 11,644,230.40

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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.