Home / 279,938,314.90-419,907,472.35-164,863,623.70

Finding the Fourth Proportional to 279,938,314.90, 419,907,472.35 and 164,863,623.70

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Solution

The fourth proportional to 279,938,314.90, 419,907,472.35 and 164,863,623.70 is: 247,295,435.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,938,314.90 : 419,907,472.35 = 164,863,623.70 : x
  2. Step 2: Convert to fraction form
    279,938,314.90/419,907,472.35 = 164,863,623.70/x
  3. Step 3: Cross multiply
    279,938,314.90x = 419,907,472.35 × 164,863,623.70
  4. Step 4: Simplify right side
    279,938,314.90x = 69,227,467,510,328,552
  5. Step 5: Solve for x
    x = 69,227,467,510,328,552/279,938,314.90
  6. Step 6: Final answer
    x = 247,295,435.55

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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.