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Finding the Fourth Proportional to 318,905,680.80, 446,770,284 and 318,905,680.80

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Solution

The fourth proportional to 318,905,680.80, 446,770,284 and 318,905,680.80 is: 446,770,284

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,905,680.80 : 446,770,284 = 318,905,680.80 : x
  2. Step 2: Convert to fraction form
    318,905,680.80/446,770,284 = 318,905,680.80/x
  3. Step 3: Cross multiply
    318,905,680.80x = 446,770,284 × 318,905,680.80
  4. Step 4: Simplify right side
    318,905,680.80x = 142,477,581,580,229,360
  5. Step 5: Solve for x
    x = 142,477,581,580,229,360/318,905,680.80
  6. Step 6: Final answer
    x = 446,770,284

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.