Home / 7,879,071.22-10,878,178.62-4,942,913.80

Finding the Fourth Proportional to 7,879,071.22, 10,878,178.62 and 4,942,913.80

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Solution

The fourth proportional to 7,879,071.22, 10,878,178.62 and 4,942,913.80 is: 6,824,395.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879,071.22 : 10,878,178.62 = 4,942,913.80 : x
  2. Step 2: Convert to fraction form
    7,879,071.22/10,878,178.62 = 4,942,913.80/x
  3. Step 3: Cross multiply
    7,879,071.22x = 10,878,178.62 × 4,942,913.80
  4. Step 4: Simplify right side
    7,879,071.22x = 53,769,899,219,662.95
  5. Step 5: Solve for x
    x = 53,769,899,219,662.95/7,879,071.22
  6. Step 6: Final answer
    x = 6,824,395.63

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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.