Home / 419,781,930.40-629,938,316.40-247,258,410.40

Finding the Fourth Proportional to 419,781,930.40, 629,938,316.40 and 247,258,410.40

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Solution

The fourth proportional to 419,781,930.40, 629,938,316.40 and 247,258,410.40 is: 371,043,952.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,781,930.40 : 629,938,316.40 = 247,258,410.40 : x
  2. Step 2: Convert to fraction form
    419,781,930.40/629,938,316.40 = 247,258,410.40/x
  3. Step 3: Cross multiply
    419,781,930.40x = 629,938,316.40 × 247,258,410.40
  4. Step 4: Simplify right side
    419,781,930.40x = 155,757,546,763,116,256
  5. Step 5: Solve for x
    x = 155,757,546,763,116,256/419,781,930.40
  6. Step 6: Final answer
    x = 371,043,952.78

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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.