Home / 217,776,435.39-300,467,009.07-129,599,744.67

Finding the Fourth Proportional to 217,776,435.39, 300,467,009.07 and 129,599,744.67

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Solution

The fourth proportional to 217,776,435.39, 300,467,009.07 and 129,599,744.67 is: 178,809,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,776,435.39 : 300,467,009.07 = 129,599,744.67 : x
  2. Step 2: Convert to fraction form
    217,776,435.39/300,467,009.07 = 129,599,744.67/x
  3. Step 3: Cross multiply
    217,776,435.39x = 300,467,009.07 × 129,599,744.67
  4. Step 4: Simplify right side
    217,776,435.39x = 38,940,447,657,230,576
  5. Step 5: Solve for x
    x = 38,940,447,657,230,576/217,776,435.39
  6. Step 6: Final answer
    x = 178,809,280.20

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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.