Home / 12,405,479.18-18,609,385.60-3,651,763.50

Finding the Fourth Proportional to 12,405,479.18, 18,609,385.60 and 3,651,763.50

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Solution

The fourth proportional to 12,405,479.18, 18,609,385.60 and 3,651,763.50 is: 5,477,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405,479.18 : 18,609,385.60 = 3,651,763.50 : x
  2. Step 2: Convert to fraction form
    12,405,479.18/18,609,385.60 = 3,651,763.50/x
  3. Step 3: Cross multiply
    12,405,479.18x = 18,609,385.60 × 3,651,763.50
  4. Step 4: Simplify right side
    12,405,479.18x = 67,957,075,091,505.60
  5. Step 5: Solve for x
    x = 67,957,075,091,505.60/12,405,479.18
  6. Step 6: Final answer
    x = 5,477,988.73

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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.