Home / 13,708,968.49-18,920,407.00-8,680,185.39

Finding the Fourth Proportional to 13,708,968.49, 18,920,407.00 and 8,680,185.39

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Solution

The fourth proportional to 13,708,968.49, 18,920,407.00 and 8,680,185.39 is: 11,979,941.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708,968.49 : 18,920,407.00 = 8,680,185.39 : x
  2. Step 2: Convert to fraction form
    13,708,968.49/18,920,407.00 = 8,680,185.39/x
  3. Step 3: Cross multiply
    13,708,968.49x = 18,920,407.00 × 8,680,185.39
  4. Step 4: Simplify right side
    13,708,968.49x = 164,232,640,463,504.78
  5. Step 5: Solve for x
    x = 164,232,640,463,504.78/13,708,968.49
  6. Step 6: Final answer
    x = 11,979,941.49

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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.