Home / 20,495,824.20-28,284,838.74-11,203,907.58

Finding the Fourth Proportional to 20,495,824.20, 28,284,838.74 and 11,203,907.58

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Solution

The fourth proportional to 20,495,824.20, 28,284,838.74 and 11,203,907.58 is: 15,461,721.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,495,824.20 : 28,284,838.74 = 11,203,907.58 : x
  2. Step 2: Convert to fraction form
    20,495,824.20/28,284,838.74 = 11,203,907.58/x
  3. Step 3: Cross multiply
    20,495,824.20x = 28,284,838.74 × 11,203,907.58
  4. Step 4: Simplify right side
    20,495,824.20x = 316,900,719,158,163.62
  5. Step 5: Solve for x
    x = 316,900,719,158,163.62/20,495,824.20
  6. Step 6: Final answer
    x = 15,461,721.18

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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.