Home / 10,780,436.80-16,170,655.20-5,389,919.20

Finding the Fourth Proportional to 10,780,436.80, 16,170,655.20 and 5,389,919.20

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Solution

The fourth proportional to 10,780,436.80, 16,170,655.20 and 5,389,919.20 is: 8,084,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,436.80 : 16,170,655.20 = 5,389,919.20 : x
  2. Step 2: Convert to fraction form
    10,780,436.80/16,170,655.20 = 5,389,919.20/x
  3. Step 3: Cross multiply
    10,780,436.80x = 16,170,655.20 × 5,389,919.20
  4. Step 4: Simplify right side
    10,780,436.80x = 87,158,524,939,059.84
  5. Step 5: Solve for x
    x = 87,158,524,939,059.84/10,780,436.80
  6. Step 6: Final answer
    x = 8,084,878.80

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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.