Home / 8,776,354.36-13,155,893.88-5,128,454.56

Finding the Fourth Proportional to 8,776,354.36, 13,155,893.88 and 5,128,454.56

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Solution

The fourth proportional to 8,776,354.36, 13,155,893.88 and 5,128,454.56 is: 7,687,634.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,776,354.36 : 13,155,893.88 = 5,128,454.56 : x
  2. Step 2: Convert to fraction form
    8,776,354.36/13,155,893.88 = 5,128,454.56/x
  3. Step 3: Cross multiply
    8,776,354.36x = 13,155,893.88 × 5,128,454.56
  4. Step 4: Simplify right side
    8,776,354.36x = 67,469,403,959,762.09
  5. Step 5: Solve for x
    x = 67,469,403,959,762.09/8,776,354.36
  6. Step 6: Final answer
    x = 7,687,634.43

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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.