Home / 354,328,120.60-531,492,180.90-318,615,285.40

Finding the Fourth Proportional to 354,328,120.60, 531,492,180.90 and 318,615,285.40

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Solution

The fourth proportional to 354,328,120.60, 531,492,180.90 and 318,615,285.40 is: 477,922,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,328,120.60 : 531,492,180.90 = 318,615,285.40 : x
  2. Step 2: Convert to fraction form
    354,328,120.60/531,492,180.90 = 318,615,285.40/x
  3. Step 3: Cross multiply
    354,328,120.60x = 531,492,180.90 × 318,615,285.40
  4. Step 4: Simplify right side
    354,328,120.60x = 169,341,532,905,321,920
  5. Step 5: Solve for x
    x = 169,341,532,905,321,920/354,328,120.60
  6. Step 6: Final answer
    x = 477,922,928.10

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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.