Home / 318,037,343.80-477,056,015.70-281,757,638.20

Finding the Fourth Proportional to 318,037,343.80, 477,056,015.70 and 281,757,638.20

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Solution

The fourth proportional to 318,037,343.80, 477,056,015.70 and 281,757,638.20 is: 422,636,457.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,037,343.80 : 477,056,015.70 = 281,757,638.20 : x
  2. Step 2: Convert to fraction form
    318,037,343.80/477,056,015.70 = 281,757,638.20/x
  3. Step 3: Cross multiply
    318,037,343.80x = 477,056,015.70 × 281,757,638.20
  4. Step 4: Simplify right side
    318,037,343.80x = 134,414,176,272,734,112
  5. Step 5: Solve for x
    x = 134,414,176,272,734,112/318,037,343.80
  6. Step 6: Final answer
    x = 422,636,457.30

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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.