Home / 20,131,435.80-27,781,697.88-10,964,071.44

Finding the Fourth Proportional to 20,131,435.80, 27,781,697.88 and 10,964,071.44

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Solution

The fourth proportional to 20,131,435.80, 27,781,697.88 and 10,964,071.44 is: 15,130,590.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131,435.80 : 27,781,697.88 = 10,964,071.44 : x
  2. Step 2: Convert to fraction form
    20,131,435.80/27,781,697.88 = 10,964,071.44/x
  3. Step 3: Cross multiply
    20,131,435.80x = 27,781,697.88 × 10,964,071.44
  4. Step 4: Simplify right side
    20,131,435.80x = 304,600,520,280,816.50
  5. Step 5: Solve for x
    x = 304,600,520,280,816.50/20,131,435.80
  6. Step 6: Final answer
    x = 15,130,590.95

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1.5x scale

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.