Home / 12,604,861.20-18,907,291.80-8,300,189.10

Finding the Fourth Proportional to 12,604,861.20, 18,907,291.80 and 8,300,189.10

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Solution

The fourth proportional to 12,604,861.20, 18,907,291.80 and 8,300,189.10 is: 12,450,283.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,604,861.20 : 18,907,291.80 = 8,300,189.10 : x
  2. Step 2: Convert to fraction form
    12,604,861.20/18,907,291.80 = 8,300,189.10/x
  3. Step 3: Cross multiply
    12,604,861.20x = 18,907,291.80 × 8,300,189.10
  4. Step 4: Simplify right side
    12,604,861.20x = 156,934,097,308,879.38
  5. Step 5: Solve for x
    x = 156,934,097,308,879.38/12,604,861.20
  6. Step 6: Final answer
    x = 12,450,283.65

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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.