Home / 12,148,708.20-18,225,686.70-3,629,905.80

Finding the Fourth Proportional to 12,148,708.20, 18,225,686.70 and 3,629,905.80

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Solution

The fourth proportional to 12,148,708.20, 18,225,686.70 and 3,629,905.80 is: 5,445,642.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148,708.20 : 18,225,686.70 = 3,629,905.80 : x
  2. Step 2: Convert to fraction form
    12,148,708.20/18,225,686.70 = 3,629,905.80/x
  3. Step 3: Cross multiply
    12,148,708.20x = 18,225,686.70 × 3,629,905.80
  4. Step 4: Simplify right side
    12,148,708.20x = 66,157,525,861,312.85
  5. Step 5: Solve for x
    x = 66,157,525,861,312.85/12,148,708.20
  6. Step 6: Final answer
    x = 5,445,642.84

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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.