Home / 143,216,993.36-197,663,153.66-84,494,015.12

Finding the Fourth Proportional to 143,216,993.36, 197,663,153.66 and 84,494,015.12

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Solution

The fourth proportional to 143,216,993.36, 197,663,153.66 and 84,494,015.12 is: 116,615,724.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,216,993.36 : 197,663,153.66 = 84,494,015.12 : x
  2. Step 2: Convert to fraction form
    143,216,993.36/197,663,153.66 = 84,494,015.12/x
  3. Step 3: Cross multiply
    143,216,993.36x = 197,663,153.66 × 84,494,015.12
  4. Step 4: Simplify right side
    143,216,993.36x = 16,701,353,494,014,924
  5. Step 5: Solve for x
    x = 16,701,353,494,014,924/143,216,993.36
  6. Step 6: Final answer
    x = 116,615,724.87

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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.