Home / 7,028,691,164.64-9,699,567,198.93-3,856,928,159.34

Finding the Fourth Proportional to 7,028,691,164.64, 9,699,567,198.93 and 3,856,928,159.34

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Solution

The fourth proportional to 7,028,691,164.64, 9,699,567,198.93 and 3,856,928,159.34 is: 5,322,546,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028,691,164.64 : 9,699,567,198.93 = 3,856,928,159.34 : x
  2. Step 2: Convert to fraction form
    7,028,691,164.64/9,699,567,198.93 = 3,856,928,159.34/x
  3. Step 3: Cross multiply
    7,028,691,164.64x = 9,699,567,198.93 × 3,856,928,159.34
  4. Step 4: Simplify right side
    7,028,691,164.64x = 37,410,533,862,963,724,288
  5. Step 5: Solve for x
    x = 37,410,533,862,963,724,288/7,028,691,164.64
  6. Step 6: Final answer
    x = 5,322,546,258.85

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Double scale
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1.5x scale

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.