Home / 20,646,780.44-28,493,288.15-11,355,069.69

Finding the Fourth Proportional to 20,646,780.44, 28,493,288.15 and 11,355,069.69

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Solution

The fourth proportional to 20,646,780.44, 28,493,288.15 and 11,355,069.69 is: 15,670,398.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646,780.44 : 28,493,288.15 = 11,355,069.69 : x
  2. Step 2: Convert to fraction form
    20,646,780.44/28,493,288.15 = 11,355,069.69/x
  3. Step 3: Cross multiply
    20,646,780.44x = 28,493,288.15 × 11,355,069.69
  4. Step 4: Simplify right side
    20,646,780.44x = 323,543,272,583,725.81
  5. Step 5: Solve for x
    x = 323,543,272,583,725.81/20,646,780.44
  6. Step 6: Final answer
    x = 15,670,398.28

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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.