Home / 15,339,186.88-21,168,520.96-8,464,111.68

Finding the Fourth Proportional to 15,339,186.88, 21,168,520.96 and 8,464,111.68

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Solution

The fourth proportional to 15,339,186.88, 21,168,520.96 and 8,464,111.68 is: 11,680,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339,186.88 : 21,168,520.96 = 8,464,111.68 : x
  2. Step 2: Convert to fraction form
    15,339,186.88/21,168,520.96 = 8,464,111.68/x
  3. Step 3: Cross multiply
    15,339,186.88x = 21,168,520.96 × 8,464,111.68
  4. Step 4: Simplify right side
    15,339,186.88x = 179,172,725,505,860.81
  5. Step 5: Solve for x
    x = 179,172,725,505,860.81/15,339,186.88
  6. Step 6: Final answer
    x = 11,680,718.60

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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.