Home / 8,686,845.91-11,977,970.28-5,542,880.32

Finding the Fourth Proportional to 8,686,845.91, 11,977,970.28 and 5,542,880.32

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Solution

The fourth proportional to 8,686,845.91, 11,977,970.28 and 5,542,880.32 is: 7,642,872.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686,845.91 : 11,977,970.28 = 5,542,880.32 : x
  2. Step 2: Convert to fraction form
    8,686,845.91/11,977,970.28 = 5,542,880.32/x
  3. Step 3: Cross multiply
    8,686,845.91x = 11,977,970.28 × 5,542,880.32
  4. Step 4: Simplify right side
    8,686,845.91x = 66,392,455,732,743.55
  5. Step 5: Solve for x
    x = 66,392,455,732,743.55/8,686,845.91
  6. Step 6: Final answer
    x = 7,642,872.50

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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.