Home / 189,657,694.34-261,769,723.05-115,302,455.36

Finding the Fourth Proportional to 189,657,694.34, 261,769,723.05 and 115,302,455.36

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Solution

The fourth proportional to 189,657,694.34, 261,769,723.05 and 115,302,455.36 is: 159,142,986.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,657,694.34 : 261,769,723.05 = 115,302,455.36 : x
  2. Step 2: Convert to fraction form
    189,657,694.34/261,769,723.05 = 115,302,455.36/x
  3. Step 3: Cross multiply
    189,657,694.34x = 261,769,723.05 × 115,302,455.36
  4. Step 4: Simplify right side
    189,657,694.34x = 30,182,691,804,686,828
  5. Step 5: Solve for x
    x = 30,182,691,804,686,828/189,657,694.34
  6. Step 6: Final answer
    x = 159,142,986.05

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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.