Home / 419,781,831.40-629,938,167.90-247,258,311.40

Finding the Fourth Proportional to 419,781,831.40, 629,938,167.90 and 247,258,311.40

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Solution

The fourth proportional to 419,781,831.40, 629,938,167.90 and 247,258,311.40 is: 371,043,804.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,781,831.40 : 629,938,167.90 = 247,258,311.40 : x
  2. Step 2: Convert to fraction form
    419,781,831.40/629,938,167.90 = 247,258,311.40/x
  3. Step 3: Cross multiply
    419,781,831.40x = 629,938,167.90 × 247,258,311.40
  4. Step 4: Simplify right side
    419,781,831.40x = 155,757,447,681,363,680
  5. Step 5: Solve for x
    x = 155,757,447,681,363,680/419,781,831.40
  6. Step 6: Final answer
    x = 371,043,804.26

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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.