Home / 875,395,538.43-1,313,091,688.60-285,185,073.48

Finding the Fourth Proportional to 875,395,538.43, 1,313,091,688.60 and 285,185,073.48

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Solution

The fourth proportional to 875,395,538.43, 1,313,091,688.60 and 285,185,073.48 is: 427,777,082.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,395,538.43 : 1,313,091,688.60 = 285,185,073.48 : x
  2. Step 2: Convert to fraction form
    875,395,538.43/1,313,091,688.60 = 285,185,073.48/x
  3. Step 3: Cross multiply
    875,395,538.43x = 1,313,091,688.60 × 285,185,073.48
  4. Step 4: Simplify right side
    875,395,538.43x = 374,474,149,694,786,432
  5. Step 5: Solve for x
    x = 374,474,149,694,786,432/875,395,538.43
  6. Step 6: Final answer
    x = 427,777,082.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.