Home / 318,073,431.60-477,110,147.40-257,607,255.60

Finding the Fourth Proportional to 318,073,431.60, 477,110,147.40 and 257,607,255.60

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Solution

The fourth proportional to 318,073,431.60, 477,110,147.40 and 257,607,255.60 is: 386,410,883.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,073,431.60 : 477,110,147.40 = 257,607,255.60 : x
  2. Step 2: Convert to fraction form
    318,073,431.60/477,110,147.40 = 257,607,255.60/x
  3. Step 3: Cross multiply
    318,073,431.60x = 477,110,147.40 × 257,607,255.60
  4. Step 4: Simplify right side
    318,073,431.60x = 122,907,035,690,625,472
  5. Step 5: Solve for x
    x = 122,907,035,690,625,472/318,073,431.60
  6. Step 6: Final answer
    x = 386,410,883.40

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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.