Home / 419,781,808.40-629,938,133.40-247,258,288.40

Finding the Fourth Proportional to 419,781,808.40, 629,938,133.40 and 247,258,288.40

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Solution

The fourth proportional to 419,781,808.40, 629,938,133.40 and 247,258,288.40 is: 371,043,769.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,781,808.40 : 629,938,133.40 = 247,258,288.40 : x
  2. Step 2: Convert to fraction form
    419,781,808.40/629,938,133.40 = 247,258,288.40/x
  3. Step 3: Cross multiply
    419,781,808.40x = 629,938,133.40 × 247,258,288.40
  4. Step 4: Simplify right side
    419,781,808.40x = 155,757,424,662,374,880
  5. Step 5: Solve for x
    x = 155,757,424,662,374,880/419,781,808.40
  6. Step 6: Final answer
    x = 371,043,769.75

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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.