Home / 347,631,747.40-521,447,621.10-309,336,502.60

Finding the Fourth Proportional to 347,631,747.40, 521,447,621.10 and 309,336,502.60

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Solution

The fourth proportional to 347,631,747.40, 521,447,621.10 and 309,336,502.60 is: 464,004,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,631,747.40 : 521,447,621.10 = 309,336,502.60 : x
  2. Step 2: Convert to fraction form
    347,631,747.40/521,447,621.10 = 309,336,502.60/x
  3. Step 3: Cross multiply
    347,631,747.40x = 521,447,621.10 × 309,336,502.60
  4. Step 4: Simplify right side
    347,631,747.40x = 161,302,783,400,164,000
  5. Step 5: Solve for x
    x = 161,302,783,400,164,000/347,631,747.40
  6. Step 6: Final answer
    x = 464,004,753.90

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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.