Home / 137,109,698.73-189,214,865.60-75,230,020.89

Finding the Fourth Proportional to 137,109,698.73, 189,214,865.60 and 75,230,020.89

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Solution

The fourth proportional to 137,109,698.73, 189,214,865.60 and 75,230,020.89 is: 103,819,338.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,109,698.73 : 189,214,865.60 = 75,230,020.89 : x
  2. Step 2: Convert to fraction form
    137,109,698.73/189,214,865.60 = 75,230,020.89/x
  3. Step 3: Cross multiply
    137,109,698.73x = 189,214,865.60 × 75,230,020.89
  4. Step 4: Simplify right side
    137,109,698.73x = 14,234,638,291,410,392
  5. Step 5: Solve for x
    x = 14,234,638,291,410,392/137,109,698.73
  6. Step 6: Final answer
    x = 103,819,338.99

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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.