Home / 12,649,071.84-18,966,784.32-6,568,803.60

Finding the Fourth Proportional to 12,649,071.84, 18,966,784.32 and 6,568,803.60

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Solution

The fourth proportional to 12,649,071.84, 18,966,784.32 and 6,568,803.60 is: 9,849,661.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,649,071.84 : 18,966,784.32 = 6,568,803.60 : x
  2. Step 2: Convert to fraction form
    12,649,071.84/18,966,784.32 = 6,568,803.60/x
  3. Step 3: Cross multiply
    12,649,071.84x = 18,966,784.32 × 6,568,803.60
  4. Step 4: Simplify right side
    12,649,071.84x = 124,589,081,121,639.55
  5. Step 5: Solve for x
    x = 124,589,081,121,639.55/12,649,071.84
  6. Step 6: Final answer
    x = 9,849,661.91

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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.