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Finding the Fourth Proportional to 524,448,203.40, 786,672,305.10 and 320,374,859.40

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Solution

The fourth proportional to 524,448,203.40, 786,672,305.10 and 320,374,859.40 is: 480,562,289.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,448,203.40 : 786,672,305.10 = 320,374,859.40 : x
  2. Step 2: Convert to fraction form
    524,448,203.40/786,672,305.10 = 320,374,859.40/x
  3. Step 3: Cross multiply
    524,448,203.40x = 786,672,305.10 × 320,374,859.40
  4. Step 4: Simplify right side
    524,448,203.40x = 252,030,029,140,286,400
  5. Step 5: Solve for x
    x = 252,030,029,140,286,400/524,448,203.40
  6. Step 6: Final answer
    x = 480,562,289.10

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Similar ratio
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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.