Home / 296,916,010.40-445,374,015.60-258,652,258.40

Finding the Fourth Proportional to 296,916,010.40, 445,374,015.60 and 258,652,258.40

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Solution

The fourth proportional to 296,916,010.40, 445,374,015.60 and 258,652,258.40 is: 387,978,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,916,010.40 : 445,374,015.60 = 258,652,258.40 : x
  2. Step 2: Convert to fraction form
    296,916,010.40/445,374,015.60 = 258,652,258.40/x
  3. Step 3: Cross multiply
    296,916,010.40x = 445,374,015.60 × 258,652,258.40
  4. Step 4: Simplify right side
    296,916,010.40x = 115,196,994,967,616,832
  5. Step 5: Solve for x
    x = 115,196,994,967,616,832/296,916,010.40
  6. Step 6: Final answer
    x = 387,978,387.60

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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.