Home / 20,340,342.55-28,069,878.71-11,048,094.05

Finding the Fourth Proportional to 20,340,342.55, 28,069,878.71 and 11,048,094.05

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Solution

The fourth proportional to 20,340,342.55, 28,069,878.71 and 11,048,094.05 is: 15,246,481.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,340,342.55 : 28,069,878.71 = 11,048,094.05 : x
  2. Step 2: Convert to fraction form
    20,340,342.55/28,069,878.71 = 11,048,094.05/x
  3. Step 3: Cross multiply
    20,340,342.55x = 28,069,878.71 × 11,048,094.05
  4. Step 4: Simplify right side
    20,340,342.55x = 310,118,659,904,932.19
  5. Step 5: Solve for x
    x = 310,118,659,904,932.19/20,340,342.55
  6. Step 6: Final answer
    x = 15,246,481.68

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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.