Home / 6,985,225.49-9,639,596.05-3,929,439.74

Finding the Fourth Proportional to 6,985,225.49, 9,639,596.05 and 3,929,439.74

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Solution

The fourth proportional to 6,985,225.49, 9,639,596.05 and 3,929,439.74 is: 5,422,618.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985,225.49 : 9,639,596.05 = 3,929,439.74 : x
  2. Step 2: Convert to fraction form
    6,985,225.49/9,639,596.05 = 3,929,439.74/x
  3. Step 3: Cross multiply
    6,985,225.49x = 9,639,596.05 × 3,929,439.74
  4. Step 4: Simplify right side
    6,985,225.49x = 37,878,211,738,395.45
  5. Step 5: Solve for x
    x = 37,878,211,738,395.45/6,985,225.49
  6. Step 6: Final answer
    x = 5,422,618.33

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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.