Home / 20,552,405.31-28,362,341.34-11,133,218.07

Finding the Fourth Proportional to 20,552,405.31, 28,362,341.34 and 11,133,218.07

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Solution

The fourth proportional to 20,552,405.31, 28,362,341.34 and 11,133,218.07 is: 15,363,852.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552,405.31 : 28,362,341.34 = 11,133,218.07 : x
  2. Step 2: Convert to fraction form
    20,552,405.31/28,362,341.34 = 11,133,218.07/x
  3. Step 3: Cross multiply
    20,552,405.31x = 28,362,341.34 × 11,133,218.07
  4. Step 4: Simplify right side
    20,552,405.31x = 315,764,131,113,996
  5. Step 5: Solve for x
    x = 315,764,131,113,996/20,552,405.31
  6. Step 6: Final answer
    x = 15,363,852.86

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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.