Home / 18,701,998.40-28,045,999.20-6,566,772.80

Finding the Fourth Proportional to 18,701,998.40, 28,045,999.20 and 6,566,772.80

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Solution

The fourth proportional to 18,701,998.40, 28,045,999.20 and 6,566,772.80 is: 9,847,701.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701,998.40 : 28,045,999.20 = 6,566,772.80 : x
  2. Step 2: Convert to fraction form
    18,701,998.40/28,045,999.20 = 6,566,772.80/x
  3. Step 3: Cross multiply
    18,701,998.40x = 28,045,999.20 × 6,566,772.80
  4. Step 4: Simplify right side
    18,701,998.40x = 184,171,704,695,381.75
  5. Step 5: Solve for x
    x = 184,171,704,695,381.75/18,701,998.40
  6. Step 6: Final answer
    x = 9,847,701.87

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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.