Home / 8,498,685.65-11,728,186.63-4,631,205.78

Finding the Fourth Proportional to 8,498,685.65, 11,728,186.63 and 4,631,205.78

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Solution

The fourth proportional to 8,498,685.65, 11,728,186.63 and 4,631,205.78 is: 6,391,064.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,498,685.65 : 11,728,186.63 = 4,631,205.78 : x
  2. Step 2: Convert to fraction form
    8,498,685.65/11,728,186.63 = 4,631,205.78/x
  3. Step 3: Cross multiply
    8,498,685.65x = 11,728,186.63 × 4,631,205.78
  4. Step 4: Simplify right side
    8,498,685.65x = 54,315,645,698,196.71
  5. Step 5: Solve for x
    x = 54,315,645,698,196.71/8,498,685.65
  6. Step 6: Final answer
    x = 6,391,064.21

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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.