Home / 13,309,878.40-19,964,817.60-6,591,414.40

Finding the Fourth Proportional to 13,309,878.40, 19,964,817.60 and 6,591,414.40

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Solution

The fourth proportional to 13,309,878.40, 19,964,817.60 and 6,591,414.40 is: 9,887,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,878.40 : 19,964,817.60 = 6,591,414.40 : x
  2. Step 2: Convert to fraction form
    13,309,878.40/19,964,817.60 = 6,591,414.40/x
  3. Step 3: Cross multiply
    13,309,878.40x = 19,964,817.60 × 6,591,414.40
  4. Step 4: Simplify right side
    13,309,878.40x = 131,596,386,222,013.45
  5. Step 5: Solve for x
    x = 131,596,386,222,013.45/13,309,878.40
  6. Step 6: Final answer
    x = 9,887,121.60

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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.