Home / 643,258,668.96-962,453,090.52-381,083,933.16

Finding the Fourth Proportional to 643,258,668.96, 962,453,090.52 and 381,083,933.16

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Solution

The fourth proportional to 643,258,668.96, 962,453,090.52 and 381,083,933.16 is: 570,183,391.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,258,668.96 : 962,453,090.52 = 381,083,933.16 : x
  2. Step 2: Convert to fraction form
    643,258,668.96/962,453,090.52 = 381,083,933.16/x
  3. Step 3: Cross multiply
    643,258,668.96x = 962,453,090.52 × 381,083,933.16
  4. Step 4: Simplify right side
    643,258,668.96x = 366,775,409,217,359,104
  5. Step 5: Solve for x
    x = 366,775,409,217,359,104/643,258,668.96
  6. Step 6: Final answer
    x = 570,183,391.09

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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.