Home / 7,185,817.20-10,762,979.40-6,387,999.60

Finding the Fourth Proportional to 7,185,817.20, 10,762,979.40 and 6,387,999.60

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Solution

The fourth proportional to 7,185,817.20, 10,762,979.40 and 6,387,999.60 is: 9,568,001.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185,817.20 : 10,762,979.40 = 6,387,999.60 : x
  2. Step 2: Convert to fraction form
    7,185,817.20/10,762,979.40 = 6,387,999.60/x
  3. Step 3: Cross multiply
    7,185,817.20x = 10,762,979.40 × 6,387,999.60
  4. Step 4: Simplify right side
    7,185,817.20x = 68,753,908,102,008.24
  5. Step 5: Solve for x
    x = 68,753,908,102,008.24/7,185,817.20
  6. Step 6: Final answer
    x = 9,568,001.27

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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.