Home / 354,328,211.85-531,492,317.78-318,615,376.65

Finding the Fourth Proportional to 354,328,211.85, 531,492,317.78 and 318,615,376.65

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Solution

The fourth proportional to 354,328,211.85, 531,492,317.78 and 318,615,376.65 is: 477,923,064.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,328,211.85 : 531,492,317.78 = 318,615,376.65 : x
  2. Step 2: Convert to fraction form
    354,328,211.85/531,492,317.78 = 318,615,376.65/x
  3. Step 3: Cross multiply
    354,328,211.85x = 531,492,317.78 × 318,615,376.65
  4. Step 4: Simplify right side
    354,328,211.85x = 169,341,625,014,463,104
  5. Step 5: Solve for x
    x = 169,341,625,014,463,104/354,328,211.85
  6. Step 6: Final answer
    x = 477,923,064.98

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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.