Home / 323,638,145.40-485,457,218.10-318,263,374.20

Finding the Fourth Proportional to 323,638,145.40, 485,457,218.10 and 318,263,374.20

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Solution

The fourth proportional to 323,638,145.40, 485,457,218.10 and 318,263,374.20 is: 477,395,061.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,638,145.40 : 485,457,218.10 = 318,263,374.20 : x
  2. Step 2: Convert to fraction form
    323,638,145.40/485,457,218.10 = 318,263,374.20/x
  3. Step 3: Cross multiply
    323,638,145.40x = 485,457,218.10 × 318,263,374.20
  4. Step 4: Simplify right side
    323,638,145.40x = 154,503,252,262,251,328
  5. Step 5: Solve for x
    x = 154,503,252,262,251,328/323,638,145.40
  6. Step 6: Final answer
    x = 477,395,061.30

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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.