Home / 498,394,406.28-687,798,155.16-275,390,529.72

Finding the Fourth Proportional to 498,394,406.28, 687,798,155.16 and 275,390,529.72

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Solution

The fourth proportional to 498,394,406.28, 687,798,155.16 and 275,390,529.72 is: 380,046,597.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,394,406.28 : 687,798,155.16 = 275,390,529.72 : x
  2. Step 2: Convert to fraction form
    498,394,406.28/687,798,155.16 = 275,390,529.72/x
  3. Step 3: Cross multiply
    498,394,406.28x = 687,798,155.16 × 275,390,529.72
  4. Step 4: Simplify right side
    498,394,406.28x = 189,413,098,289,951,168
  5. Step 5: Solve for x
    x = 189,413,098,289,951,168/498,394,406.28
  6. Step 6: Final answer
    x = 380,046,597.44

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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.