Home / 19,320,851.70-28,981,277.55-11,762,579.70

Finding the Fourth Proportional to 19,320,851.70, 28,981,277.55 and 11,762,579.70

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Solution

The fourth proportional to 19,320,851.70, 28,981,277.55 and 11,762,579.70 is: 17,643,869.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320,851.70 : 28,981,277.55 = 11,762,579.70 : x
  2. Step 2: Convert to fraction form
    19,320,851.70/28,981,277.55 = 11,762,579.70/x
  3. Step 3: Cross multiply
    19,320,851.70x = 28,981,277.55 × 11,762,579.70
  4. Step 4: Simplify right side
    19,320,851.70x = 340,894,586,989,695.75
  5. Step 5: Solve for x
    x = 340,894,586,989,695.75/19,320,851.70
  6. Step 6: Final answer
    x = 17,643,869.55

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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.