Home / 28,067,200.70-42,100,801.05-20,508,928.70

Finding the Fourth Proportional to 28,067,200.70, 42,100,801.05 and 20,508,928.70

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Solution

The fourth proportional to 28,067,200.70, 42,100,801.05 and 20,508,928.70 is: 30,763,393.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067,200.70 : 42,100,801.05 = 20,508,928.70 : x
  2. Step 2: Convert to fraction form
    28,067,200.70/42,100,801.05 = 20,508,928.70/x
  3. Step 3: Cross multiply
    28,067,200.70x = 42,100,801.05 × 20,508,928.70
  4. Step 4: Simplify right side
    28,067,200.70x = 863,442,326,947,335
  5. Step 5: Solve for x
    x = 863,442,326,947,335/28,067,200.70
  6. Step 6: Final answer
    x = 30,763,393.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.