Home / 628,638,654.40-943,383,134.40-352,289,334.40

Finding the Fourth Proportional to 628,638,654.40, 943,383,134.40 and 352,289,334.40

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Solution

The fourth proportional to 628,638,654.40, 943,383,134.40 and 352,289,334.40 is: 528,672,257.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,638,654.40 : 943,383,134.40 = 352,289,334.40 : x
  2. Step 2: Convert to fraction form
    628,638,654.40/943,383,134.40 = 352,289,334.40/x
  3. Step 3: Cross multiply
    628,638,654.40x = 943,383,134.40 × 352,289,334.40
  4. Step 4: Simplify right side
    628,638,654.40x = 332,343,816,501,961,728
  5. Step 5: Solve for x
    x = 332,343,816,501,961,728/628,638,654.40
  6. Step 6: Final answer
    x = 528,672,257.39

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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.