Home / 347,632,419.40-521,448,629.10-309,337,174.60

Finding the Fourth Proportional to 347,632,419.40, 521,448,629.10 and 309,337,174.60

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Solution

The fourth proportional to 347,632,419.40, 521,448,629.10 and 309,337,174.60 is: 464,005,761.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,632,419.40 : 521,448,629.10 = 309,337,174.60 : x
  2. Step 2: Convert to fraction form
    347,632,419.40/521,448,629.10 = 309,337,174.60/x
  3. Step 3: Cross multiply
    347,632,419.40x = 521,448,629.10 × 309,337,174.60
  4. Step 4: Simplify right side
    347,632,419.40x = 161,303,445,624,837,376
  5. Step 5: Solve for x
    x = 161,303,445,624,837,376/347,632,419.40
  6. Step 6: Final answer
    x = 464,005,761.90

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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.