Home / 15,339,222.88-21,168,570.64-8,464,147.68

Finding the Fourth Proportional to 15,339,222.88, 21,168,570.64 and 8,464,147.68

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Solution

The fourth proportional to 15,339,222.88, 21,168,570.64 and 8,464,147.68 is: 11,680,768.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339,222.88 : 21,168,570.64 = 8,464,147.68 : x
  2. Step 2: Convert to fraction form
    15,339,222.88/21,168,570.64 = 8,464,147.68/x
  3. Step 3: Cross multiply
    15,339,222.88x = 21,168,570.64 × 8,464,147.68
  4. Step 4: Simplify right side
    15,339,222.88x = 179,173,908,071,472.12
  5. Step 5: Solve for x
    x = 179,173,908,071,472.12/15,339,222.88
  6. Step 6: Final answer
    x = 11,680,768.28

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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.