Home / 8,142,797.75-11,230,834.21-5,531,315.40

Finding the Fourth Proportional to 8,142,797.75, 11,230,834.21 and 5,531,315.40

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Solution

The fourth proportional to 8,142,797.75, 11,230,834.21 and 5,531,315.40 is: 7,628,985.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142,797.75 : 11,230,834.21 = 5,531,315.40 : x
  2. Step 2: Convert to fraction form
    8,142,797.75/11,230,834.21 = 5,531,315.40/x
  3. Step 3: Cross multiply
    8,142,797.75x = 11,230,834.21 × 5,531,315.40
  4. Step 4: Simplify right side
    8,142,797.75x = 62,121,286,237,905.20
  5. Step 5: Solve for x
    x = 62,121,286,237,905.20/8,142,797.75
  6. Step 6: Final answer
    x = 7,628,985.53

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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.