Home / 20,157,477.31-27,819,680.29-11,456,957.79

Finding the Fourth Proportional to 20,157,477.31, 27,819,680.29 and 11,456,957.79

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Solution

The fourth proportional to 20,157,477.31, 27,819,680.29 and 11,456,957.79 is: 15,811,944.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,477.31 : 27,819,680.29 = 11,456,957.79 : x
  2. Step 2: Convert to fraction form
    20,157,477.31/27,819,680.29 = 11,456,957.79/x
  3. Step 3: Cross multiply
    20,157,477.31x = 27,819,680.29 × 11,456,957.79
  4. Step 4: Simplify right side
    20,157,477.31x = 318,728,902,849,627.94
  5. Step 5: Solve for x
    x = 318,728,902,849,627.94/20,157,477.31
  6. Step 6: Final answer
    x = 15,811,944.02

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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.