Home / 354,318,739.60-531,478,109.40-320,306,515.60

Finding the Fourth Proportional to 354,318,739.60, 531,478,109.40 and 320,306,515.60

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Solution

The fourth proportional to 354,318,739.60, 531,478,109.40 and 320,306,515.60 is: 480,459,773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,318,739.60 : 531,478,109.40 = 320,306,515.60 : x
  2. Step 2: Convert to fraction form
    354,318,739.60/531,478,109.40 = 320,306,515.60/x
  3. Step 3: Cross multiply
    354,318,739.60x = 531,478,109.40 × 320,306,515.60
  4. Step 4: Simplify right side
    354,318,739.60x = 170,235,901,339,589,600
  5. Step 5: Solve for x
    x = 170,235,901,339,589,600/354,318,739.60
  6. Step 6: Final answer
    x = 480,459,773.40

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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.