Home / 8,170,900.80-12,234,232.80-6,401,428.80

Finding the Fourth Proportional to 8,170,900.80, 12,234,232.80 and 6,401,428.80

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Solution

The fourth proportional to 8,170,900.80, 12,234,232.80 and 6,401,428.80 is: 9,584,814.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170,900.80 : 12,234,232.80 = 6,401,428.80 : x
  2. Step 2: Convert to fraction form
    8,170,900.80/12,234,232.80 = 6,401,428.80/x
  3. Step 3: Cross multiply
    8,170,900.80x = 12,234,232.80 × 6,401,428.80
  4. Step 4: Simplify right side
    8,170,900.80x = 78,316,570,191,824.64
  5. Step 5: Solve for x
    x = 78,316,570,191,824.64/8,170,900.80
  6. Step 6: Final answer
    x = 9,584,814.71

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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.