Home / 8,447,999.20-12,671,998.80-5,080,472.80

Finding the Fourth Proportional to 8,447,999.20, 12,671,998.80 and 5,080,472.80

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Solution

The fourth proportional to 8,447,999.20, 12,671,998.80 and 5,080,472.80 is: 7,620,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447,999.20 : 12,671,998.80 = 5,080,472.80 : x
  2. Step 2: Convert to fraction form
    8,447,999.20/12,671,998.80 = 5,080,472.80/x
  3. Step 3: Cross multiply
    8,447,999.20x = 12,671,998.80 × 5,080,472.80
  4. Step 4: Simplify right side
    8,447,999.20x = 64,379,745,225,032.64
  5. Step 5: Solve for x
    x = 64,379,745,225,032.64/8,447,999.20
  6. Step 6: Final answer
    x = 7,620,709.20

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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.