Home / 21,270,782.93-31,899,481.70-6,890,514.35

Finding the Fourth Proportional to 21,270,782.93, 31,899,481.70 and 6,890,514.35

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Solution

The fourth proportional to 21,270,782.93, 31,899,481.70 and 6,890,514.35 is: 10,333,603.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,270,782.93 : 31,899,481.70 = 6,890,514.35 : x
  2. Step 2: Convert to fraction form
    21,270,782.93/31,899,481.70 = 6,890,514.35/x
  3. Step 3: Cross multiply
    21,270,782.93x = 31,899,481.70 × 6,890,514.35
  4. Step 4: Simplify right side
    21,270,782.93x = 219,803,836,217,462.41
  5. Step 5: Solve for x
    x = 219,803,836,217,462.41/21,270,782.93
  6. Step 6: Final answer
    x = 10,333,603.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.