Home / 420,119,435.24-630,401,178.30-298,086,409.96

Finding the Fourth Proportional to 420,119,435.24, 630,401,178.30 and 298,086,409.96

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Solution

The fourth proportional to 420,119,435.24, 630,401,178.30 and 298,086,409.96 is: 447,287,148.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,119,435.24 : 630,401,178.30 = 298,086,409.96 : x
  2. Step 2: Convert to fraction form
    420,119,435.24/630,401,178.30 = 298,086,409.96/x
  3. Step 3: Cross multiply
    420,119,435.24x = 630,401,178.30 × 298,086,409.96
  4. Step 4: Simplify right side
    420,119,435.24x = 187,914,024,074,000,832
  5. Step 5: Solve for x
    x = 187,914,024,074,000,832/420,119,435.24
  6. Step 6: Final answer
    x = 447,287,148.16

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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.