Home / 20,820,712.56-28,732,578.84-11,653,355.04

Finding the Fourth Proportional to 20,820,712.56, 28,732,578.84 and 11,653,355.04

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Solution

The fourth proportional to 20,820,712.56, 28,732,578.84 and 11,653,355.04 is: 16,081,627.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,820,712.56 : 28,732,578.84 = 11,653,355.04 : x
  2. Step 2: Convert to fraction form
    20,820,712.56/28,732,578.84 = 11,653,355.04/x
  3. Step 3: Cross multiply
    20,820,712.56x = 28,732,578.84 × 11,653,355.04
  4. Step 4: Simplify right side
    20,820,712.56x = 334,830,942,437,311.31
  5. Step 5: Solve for x
    x = 334,830,942,437,311.31/20,820,712.56
  6. Step 6: Final answer
    x = 16,081,627.44

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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.