Home / 8,709,542.36-12,019,215.20-4,789,551.28

Finding the Fourth Proportional to 8,709,542.36, 12,019,215.20 and 4,789,551.28

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Solution

The fourth proportional to 8,709,542.36, 12,019,215.20 and 4,789,551.28 is: 6,609,606.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709,542.36 : 12,019,215.20 = 4,789,551.28 : x
  2. Step 2: Convert to fraction form
    8,709,542.36/12,019,215.20 = 4,789,551.28/x
  3. Step 3: Cross multiply
    8,709,542.36x = 12,019,215.20 × 4,789,551.28
  4. Step 4: Simplify right side
    8,709,542.36x = 57,566,647,545,755.45
  5. Step 5: Solve for x
    x = 57,566,647,545,755.45/8,709,542.36
  6. Step 6: Final answer
    x = 6,609,606.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.