Home / 20,689,954.57-28,553,023.16-11,522,597.32

Finding the Fourth Proportional to 20,689,954.57, 28,553,023.16 and 11,522,597.32

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Solution

The fourth proportional to 20,689,954.57, 28,553,023.16 and 11,522,597.32 is: 15,901,677.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,954.57 : 28,553,023.16 = 11,522,597.32 : x
  2. Step 2: Convert to fraction form
    20,689,954.57/28,553,023.16 = 11,522,597.32/x
  3. Step 3: Cross multiply
    20,689,954.57x = 28,553,023.16 × 11,522,597.32
  4. Step 4: Simplify right side
    20,689,954.57x = 329,004,988,141,313.94
  5. Step 5: Solve for x
    x = 329,004,988,141,313.94/20,689,954.57
  6. Step 6: Final answer
    x = 15,901,677.65

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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.