Home / 28,981,120.88-39,994,360.80-15,929,586.56

Finding the Fourth Proportional to 28,981,120.88, 39,994,360.80 and 15,929,586.56

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Solution

The fourth proportional to 28,981,120.88, 39,994,360.80 and 15,929,586.56 is: 21,983,057.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981,120.88 : 39,994,360.80 = 15,929,586.56 : x
  2. Step 2: Convert to fraction form
    28,981,120.88/39,994,360.80 = 15,929,586.56/x
  3. Step 3: Cross multiply
    28,981,120.88x = 39,994,360.80 × 15,929,586.56
  4. Step 4: Simplify right side
    28,981,120.88x = 637,093,632,275,470.88
  5. Step 5: Solve for x
    x = 637,093,632,275,470.88/28,981,120.88
  6. Step 6: Final answer
    x = 21,983,057.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.