Home / 20,630,603.79-28,469,073.04-12,366,530.39

Finding the Fourth Proportional to 20,630,603.79, 28,469,073.04 and 12,366,530.39

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Solution

The fourth proportional to 20,630,603.79, 28,469,073.04 and 12,366,530.39 is: 17,065,116.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630,603.79 : 28,469,073.04 = 12,366,530.39 : x
  2. Step 2: Convert to fraction form
    20,630,603.79/28,469,073.04 = 12,366,530.39/x
  3. Step 3: Cross multiply
    20,630,603.79x = 28,469,073.04 × 12,366,530.39
  4. Step 4: Simplify right side
    20,630,603.79x = 352,063,656,964,546.06
  5. Step 5: Solve for x
    x = 352,063,656,964,546.06/20,630,603.79
  6. Step 6: Final answer
    x = 17,065,116.49

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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.