Home / 11,129,987.20-16,694,980.80-8,260,205.80

Finding the Fourth Proportional to 11,129,987.20, 16,694,980.80 and 8,260,205.80

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Solution

The fourth proportional to 11,129,987.20, 16,694,980.80 and 8,260,205.80 is: 12,390,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129,987.20 : 16,694,980.80 = 8,260,205.80 : x
  2. Step 2: Convert to fraction form
    11,129,987.20/16,694,980.80 = 8,260,205.80/x
  3. Step 3: Cross multiply
    11,129,987.20x = 16,694,980.80 × 8,260,205.80
  4. Step 4: Simplify right side
    11,129,987.20x = 137,903,977,235,048.64
  5. Step 5: Solve for x
    x = 137,903,977,235,048.64/11,129,987.20
  6. Step 6: Final answer
    x = 12,390,308.70

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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.