Home / 142,890,819.39-197,300,403.45-109,798,906.86

Finding the Fourth Proportional to 142,890,819.39, 197,300,403.45 and 109,798,906.86

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Solution

The fourth proportional to 142,890,819.39, 197,300,403.45 and 109,798,906.86 is: 151,607,840.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,890,819.39 : 197,300,403.45 = 109,798,906.86 : x
  2. Step 2: Convert to fraction form
    142,890,819.39/197,300,403.45 = 109,798,906.86/x
  3. Step 3: Cross multiply
    142,890,819.39x = 197,300,403.45 × 109,798,906.86
  4. Step 4: Simplify right side
    142,890,819.39x = 21,663,368,621,846,972
  5. Step 5: Solve for x
    x = 21,663,368,621,846,972/142,890,819.39
  6. Step 6: Final answer
    x = 151,607,840.97

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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.