Home / 18,720,604.20-28,083,530.70-7,358,410.20

Finding the Fourth Proportional to 18,720,604.20, 28,083,530.70 and 7,358,410.20

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Solution

The fourth proportional to 18,720,604.20, 28,083,530.70 and 7,358,410.20 is: 11,038,646.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720,604.20 : 28,083,530.70 = 7,358,410.20 : x
  2. Step 2: Convert to fraction form
    18,720,604.20/28,083,530.70 = 7,358,410.20/x
  3. Step 3: Cross multiply
    18,720,604.20x = 28,083,530.70 × 7,358,410.20
  4. Step 4: Simplify right side
    18,720,604.20x = 206,650,138,754,893.12
  5. Step 5: Solve for x
    x = 206,650,138,754,893.12/18,720,604.20
  6. Step 6: Final answer
    x = 11,038,646.86

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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.