Home / 20,372,716.32-28,114,880.48-11,205,599.68

Finding the Fourth Proportional to 20,372,716.32, 28,114,880.48 and 11,205,599.68

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Solution

The fourth proportional to 20,372,716.32, 28,114,880.48 and 11,205,599.68 is: 15,464,020.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372,716.32 : 28,114,880.48 = 11,205,599.68 : x
  2. Step 2: Convert to fraction form
    20,372,716.32/28,114,880.48 = 11,205,599.68/x
  3. Step 3: Cross multiply
    20,372,716.32x = 28,114,880.48 × 11,205,599.68
  4. Step 4: Simplify right side
    20,372,716.32x = 315,044,095,709,926.25
  5. Step 5: Solve for x
    x = 315,044,095,709,926.25/20,372,716.32
  6. Step 6: Final answer
    x = 15,464,020.15

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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.