Home / 20,157,478.81-27,819,682.37-11,456,959.29

Finding the Fourth Proportional to 20,157,478.81, 27,819,682.37 and 11,456,959.29

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Solution

The fourth proportional to 20,157,478.81, 27,819,682.37 and 11,456,959.29 is: 15,811,946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,478.81 : 27,819,682.37 = 11,456,959.29 : x
  2. Step 2: Convert to fraction form
    20,157,478.81/27,819,682.37 = 11,456,959.29/x
  3. Step 3: Cross multiply
    20,157,478.81x = 27,819,682.37 × 11,456,959.29
  4. Step 4: Simplify right side
    20,157,478.81x = 318,728,968,373,820.69
  5. Step 5: Solve for x
    x = 318,728,968,373,820.69/20,157,478.81
  6. Step 6: Final answer
    x = 15,811,946.10

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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.