Home / 8,316,843.20-12,462,405.84-6,490,878.64

Finding the Fourth Proportional to 8,316,843.20, 12,462,405.84 and 6,490,878.64

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Solution

The fourth proportional to 8,316,843.20, 12,462,405.84 and 6,490,878.64 is: 9,726,282.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316,843.20 : 12,462,405.84 = 6,490,878.64 : x
  2. Step 2: Convert to fraction form
    8,316,843.20/12,462,405.84 = 6,490,878.64/x
  3. Step 3: Cross multiply
    8,316,843.20x = 12,462,405.84 × 6,490,878.64
  4. Step 4: Simplify right side
    8,316,843.20x = 80,891,963,869,867.25
  5. Step 5: Solve for x
    x = 80,891,963,869,867.25/8,316,843.20
  6. Step 6: Final answer
    x = 9,726,282.19

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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.