Home / 419,905,138.90-629,857,708.35-370,587,414.10

Finding the Fourth Proportional to 419,905,138.90, 629,857,708.35 and 370,587,414.10

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Solution

The fourth proportional to 419,905,138.90, 629,857,708.35 and 370,587,414.10 is: 555,881,121.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,138.90 : 629,857,708.35 = 370,587,414.10 : x
  2. Step 2: Convert to fraction form
    419,905,138.90/629,857,708.35 = 370,587,414.10/x
  3. Step 3: Cross multiply
    419,905,138.90x = 629,857,708.35 × 370,587,414.10
  4. Step 4: Simplify right side
    419,905,138.90x = 233,417,339,388,378,496
  5. Step 5: Solve for x
    x = 233,417,339,388,378,496/419,905,138.90
  6. Step 6: Final answer
    x = 555,881,121.15

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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.