Home / 12,128,194.44-16,736,821.67-6,621,569.12

Finding the Fourth Proportional to 12,128,194.44, 16,736,821.67 and 6,621,569.12

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Solution

The fourth proportional to 12,128,194.44, 16,736,821.67 and 6,621,569.12 is: 9,137,718.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,194.44 : 16,736,821.67 = 6,621,569.12 : x
  2. Step 2: Convert to fraction form
    12,128,194.44/16,736,821.67 = 6,621,569.12/x
  3. Step 3: Cross multiply
    12,128,194.44x = 16,736,821.67 × 6,621,569.12
  4. Step 4: Simplify right side
    12,128,194.44x = 110,824,021,469,888.64
  5. Step 5: Solve for x
    x = 110,824,021,469,888.64/12,128,194.44
  6. Step 6: Final answer
    x = 9,137,718.07

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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.