Home / 490,825,815.60-736,238,723.40-127,320,171.60

Finding the Fourth Proportional to 490,825,815.60, 736,238,723.40 and 127,320,171.60

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Solution

The fourth proportional to 490,825,815.60, 736,238,723.40 and 127,320,171.60 is: 190,980,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,825,815.60 : 736,238,723.40 = 127,320,171.60 : x
  2. Step 2: Convert to fraction form
    490,825,815.60/736,238,723.40 = 127,320,171.60/x
  3. Step 3: Cross multiply
    490,825,815.60x = 736,238,723.40 × 127,320,171.60
  4. Step 4: Simplify right side
    490,825,815.60x = 93,738,040,601,852,928
  5. Step 5: Solve for x
    x = 93,738,040,601,852,928/490,825,815.60
  6. Step 6: Final answer
    x = 190,980,257.40

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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.