Home / 15,178,445.06-20,942,897.91-9,299,321.42

Finding the Fourth Proportional to 15,178,445.06, 20,942,897.91 and 9,299,321.42

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Solution

The fourth proportional to 15,178,445.06, 20,942,897.91 and 9,299,321.42 is: 12,831,007.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178,445.06 : 20,942,897.91 = 9,299,321.42 : x
  2. Step 2: Convert to fraction form
    15,178,445.06/20,942,897.91 = 9,299,321.42/x
  3. Step 3: Cross multiply
    15,178,445.06x = 20,942,897.91 × 9,299,321.42
  4. Step 4: Simplify right side
    15,178,445.06x = 194,754,739,131,336.22
  5. Step 5: Solve for x
    x = 194,754,739,131,336.22/15,178,445.06
  6. Step 6: Final answer
    x = 12,831,007.28

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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.