Home / 28,080,400.80-42,120,601.20-15,325,816.80

Finding the Fourth Proportional to 28,080,400.80, 42,120,601.20 and 15,325,816.80

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Solution

The fourth proportional to 28,080,400.80, 42,120,601.20 and 15,325,816.80 is: 22,988,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080,400.80 : 42,120,601.20 = 15,325,816.80 : x
  2. Step 2: Convert to fraction form
    28,080,400.80/42,120,601.20 = 15,325,816.80/x
  3. Step 3: Cross multiply
    28,080,400.80x = 42,120,601.20 × 15,325,816.80
  4. Step 4: Simplify right side
    28,080,400.80x = 645,532,617,497,060.25
  5. Step 5: Solve for x
    x = 645,532,617,497,060.25/28,080,400.80
  6. Step 6: Final answer
    x = 22,988,725.20

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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.