Home / 12,128,763.60-18,193,145.40-4,042,003.05

Finding the Fourth Proportional to 12,128,763.60, 18,193,145.40 and 4,042,003.05

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Solution

The fourth proportional to 12,128,763.60, 18,193,145.40 and 4,042,003.05 is: 6,063,004.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,763.60 : 18,193,145.40 = 4,042,003.05 : x
  2. Step 2: Convert to fraction form
    12,128,763.60/18,193,145.40 = 4,042,003.05/x
  3. Step 3: Cross multiply
    12,128,763.60x = 18,193,145.40 × 4,042,003.05
  4. Step 4: Simplify right side
    12,128,763.60x = 73,536,749,195,893.45
  5. Step 5: Solve for x
    x = 73,536,749,195,893.45/12,128,763.60
  6. Step 6: Final answer
    x = 6,063,004.58

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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.