Home / 142,296,368.59-196,347,273.06-80,394,120.91

Finding the Fourth Proportional to 142,296,368.59, 196,347,273.06 and 80,394,120.91

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Solution

The fourth proportional to 142,296,368.59, 196,347,273.06 and 80,394,120.91 is: 110,931,618.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,296,368.59 : 196,347,273.06 = 80,394,120.91 : x
  2. Step 2: Convert to fraction form
    142,296,368.59/196,347,273.06 = 80,394,120.91/x
  3. Step 3: Cross multiply
    142,296,368.59x = 196,347,273.06 × 80,394,120.91
  4. Step 4: Simplify right side
    142,296,368.59x = 15,785,166,410,828,718
  5. Step 5: Solve for x
    x = 15,785,166,410,828,718/142,296,368.59
  6. Step 6: Final answer
    x = 110,931,618.05

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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.