Home / 13,708,967.62-18,920,405.80-8,680,184.52

Finding the Fourth Proportional to 13,708,967.62, 18,920,405.80 and 8,680,184.52

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Solution

The fourth proportional to 13,708,967.62, 18,920,405.80 and 8,680,184.52 is: 11,979,940.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708,967.62 : 18,920,405.80 = 8,680,184.52 : x
  2. Step 2: Convert to fraction form
    13,708,967.62/18,920,405.80 = 8,680,184.52/x
  3. Step 3: Cross multiply
    13,708,967.62x = 18,920,405.80 × 8,680,184.52
  4. Step 4: Simplify right side
    13,708,967.62x = 164,232,613,599,089.97
  5. Step 5: Solve for x
    x = 164,232,613,599,089.97/13,708,967.62
  6. Step 6: Final answer
    x = 11,979,940.29

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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.