Home / 245,667,923.34-368,505,142.95-81,905,732.39

Finding the Fourth Proportional to 245,667,923.34, 368,505,142.95 and 81,905,732.39

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Solution

The fourth proportional to 245,667,923.34, 368,505,142.95 and 81,905,732.39 is: 122,859,684.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,667,923.34 : 368,505,142.95 = 81,905,732.39 : x
  2. Step 2: Convert to fraction form
    245,667,923.34/368,505,142.95 = 81,905,732.39/x
  3. Step 3: Cross multiply
    245,667,923.34x = 368,505,142.95 × 81,905,732.39
  4. Step 4: Simplify right side
    245,667,923.34x = 30,182,683,624,029,804
  5. Step 5: Solve for x
    x = 30,182,683,624,029,804/245,667,923.34
  6. Step 6: Final answer
    x = 122,859,684.79

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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.