Home / 21,208,436.48-31,782,999.86-11,472,031.04

Finding the Fourth Proportional to 21,208,436.48, 31,782,999.86 and 11,472,031.04

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Solution

The fourth proportional to 21,208,436.48, 31,782,999.86 and 11,472,031.04 is: 17,192,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,208,436.48 : 31,782,999.86 = 11,472,031.04 : x
  2. Step 2: Convert to fraction form
    21,208,436.48/31,782,999.86 = 11,472,031.04/x
  3. Step 3: Cross multiply
    21,208,436.48x = 31,782,999.86 × 11,472,031.04
  4. Step 4: Simplify right side
    21,208,436.48x = 364,615,560,938,235.62
  5. Step 5: Solve for x
    x = 364,615,560,938,235.62/21,208,436.48
  6. Step 6: Final answer
    x = 17,192,005.70

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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.