Home / 20,689,918.58-28,552,973.50-11,522,561.32

Finding the Fourth Proportional to 20,689,918.58, 28,552,973.50 and 11,522,561.32

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Solution

The fourth proportional to 20,689,918.58, 28,552,973.50 and 11,522,561.32 is: 15,901,627.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,918.58 : 28,552,973.50 = 11,522,561.32 : x
  2. Step 2: Convert to fraction form
    20,689,918.58/28,552,973.50 = 11,522,561.32/x
  3. Step 3: Cross multiply
    20,689,918.58x = 28,552,973.50 × 11,522,561.32
  4. Step 4: Simplify right side
    20,689,918.58x = 329,003,388,022,085
  5. Step 5: Solve for x
    x = 329,003,388,022,085/20,689,918.58
  6. Step 6: Final answer
    x = 15,901,627.97

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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.