Home / 21,383,239.80-32,078,060.40-7,739,578.32

Finding the Fourth Proportional to 21,383,239.80, 32,078,060.40 and 7,739,578.32

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Solution

The fourth proportional to 21,383,239.80, 32,078,060.40 and 7,739,578.32 is: 11,610,525.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383,239.80 : 32,078,060.40 = 7,739,578.32 : x
  2. Step 2: Convert to fraction form
    21,383,239.80/32,078,060.40 = 7,739,578.32/x
  3. Step 3: Cross multiply
    21,383,239.80x = 32,078,060.40 × 7,739,578.32
  4. Step 4: Simplify right side
    21,383,239.80x = 248,270,660,819,490.53
  5. Step 5: Solve for x
    x = 248,270,660,819,490.53/21,383,239.80
  6. Step 6: Final answer
    x = 11,610,525.96

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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.