Home / 13,708,968.37-18,920,406.83-8,680,185.27

Finding the Fourth Proportional to 13,708,968.37, 18,920,406.83 and 8,680,185.27

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Solution

The fourth proportional to 13,708,968.37, 18,920,406.83 and 8,680,185.27 is: 11,979,941.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708,968.37 : 18,920,406.83 = 8,680,185.27 : x
  2. Step 2: Convert to fraction form
    13,708,968.37/18,920,406.83 = 8,680,185.27/x
  3. Step 3: Cross multiply
    13,708,968.37x = 18,920,406.83 × 8,680,185.27
  4. Step 4: Simplify right side
    13,708,968.37x = 164,232,636,589,296.69
  5. Step 5: Solve for x
    x = 164,232,636,589,296.69/13,708,968.37
  6. Step 6: Final answer
    x = 11,979,941.32

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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.