Home / 15,307,321.30-21,124,104.54-8,431,803.36

Finding the Fourth Proportional to 15,307,321.30, 21,124,104.54 and 8,431,803.36

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Solution

The fourth proportional to 15,307,321.30, 21,124,104.54 and 8,431,803.36 is: 11,635,889.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,307,321.30 : 21,124,104.54 = 8,431,803.36 : x
  2. Step 2: Convert to fraction form
    15,307,321.30/21,124,104.54 = 8,431,803.36/x
  3. Step 3: Cross multiply
    15,307,321.30x = 21,124,104.54 × 8,431,803.36
  4. Step 4: Simplify right side
    15,307,321.30x = 178,114,295,637,363.22
  5. Step 5: Solve for x
    x = 178,114,295,637,363.22/15,307,321.30
  6. Step 6: Final answer
    x = 11,635,889.27

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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.