Home / 20,318,542.58-28,039,607.86-11,616,897.86

Finding the Fourth Proportional to 20,318,542.58, 28,039,607.86 and 11,616,897.86

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Solution

The fourth proportional to 20,318,542.58, 28,039,607.86 and 11,616,897.86 is: 16,031,329.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318,542.58 : 28,039,607.86 = 11,616,897.86 : x
  2. Step 2: Convert to fraction form
    20,318,542.58/28,039,607.86 = 11,616,897.86/x
  3. Step 3: Cross multiply
    20,318,542.58x = 28,039,607.86 × 11,616,897.86
  4. Step 4: Simplify right side
    20,318,542.58x = 325,733,260,544,073.12
  5. Step 5: Solve for x
    x = 325,733,260,544,073.12/20,318,542.58
  6. Step 6: Final answer
    x = 16,031,329.97

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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.