Home / 142,336,859,807.44-196,427,866,583.01-78,107,022,188.38

Finding the Fourth Proportional to 142,336,859,807.44, 196,427,866,583.01 and 78,107,022,188.38

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Solution

The fourth proportional to 142,336,859,807.44, 196,427,866,583.01 and 78,107,022,188.38 is: 107,789,336,889.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,336,859,807.44 : 196,427,866,583.01 = 78,107,022,188.38 : x
  2. Step 2: Convert to fraction form
    142,336,859,807.44/196,427,866,583.01 = 78,107,022,188.38/x
  3. Step 3: Cross multiply
    142,336,859,807.44x = 196,427,866,583.01 × 78,107,022,188.38
  4. Step 4: Simplify right side
    142,336,859,807.44x = 15,342,395,733,615,310,798,848
  5. Step 5: Solve for x
    x = 15,342,395,733,615,310,798,848/142,336,859,807.44
  6. Step 6: Final answer
    x = 107,789,336,889.76

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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.