Home / 28,167,431.20-42,251,146.80-8,998,813.60

Finding the Fourth Proportional to 28,167,431.20, 42,251,146.80 and 8,998,813.60

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Solution

The fourth proportional to 28,167,431.20, 42,251,146.80 and 8,998,813.60 is: 13,498,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,167,431.20 : 42,251,146.80 = 8,998,813.60 : x
  2. Step 2: Convert to fraction form
    28,167,431.20/42,251,146.80 = 8,998,813.60/x
  3. Step 3: Cross multiply
    28,167,431.20x = 42,251,146.80 × 8,998,813.60
  4. Step 4: Simplify right side
    28,167,431.20x = 380,210,194,439,436.44
  5. Step 5: Solve for x
    x = 380,210,194,439,436.44/28,167,431.20
  6. Step 6: Final answer
    x = 13,498,220.40

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Similar ratio
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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.