Home / 209,485,533.24-289,099,004.96-116,666,040.78

Finding the Fourth Proportional to 209,485,533.24, 289,099,004.96 and 116,666,040.78

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Solution

The fourth proportional to 209,485,533.24, 289,099,004.96 and 116,666,040.78 is: 161,004,131.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,485,533.24 : 289,099,004.96 = 116,666,040.78 : x
  2. Step 2: Convert to fraction form
    209,485,533.24/289,099,004.96 = 116,666,040.78/x
  3. Step 3: Cross multiply
    209,485,533.24x = 289,099,004.96 × 116,666,040.78
  4. Step 4: Simplify right side
    209,485,533.24x = 33,728,036,302,120,780
  5. Step 5: Solve for x
    x = 33,728,036,302,120,780/209,485,533.24
  6. Step 6: Final answer
    x = 161,004,131.31

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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.