Home / 139,512,103.74-209,132,384.73-66,710,081.34

Finding the Fourth Proportional to 139,512,103.74, 209,132,384.73 and 66,710,081.34

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Solution

The fourth proportional to 139,512,103.74, 209,132,384.73 and 66,710,081.34 is: 100,000,200.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,512,103.74 : 209,132,384.73 = 66,710,081.34 : x
  2. Step 2: Convert to fraction form
    139,512,103.74/209,132,384.73 = 66,710,081.34/x
  3. Step 3: Cross multiply
    139,512,103.74x = 209,132,384.73 × 66,710,081.34
  4. Step 4: Simplify right side
    139,512,103.74x = 13,951,238,396,166,474
  5. Step 5: Solve for x
    x = 13,951,238,396,166,474/139,512,103.74
  6. Step 6: Final answer
    x = 100,000,200.86

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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.