Home / 419,383,280.40-629,074,920.60-237,984,752.40

Finding the Fourth Proportional to 419,383,280.40, 629,074,920.60 and 237,984,752.40

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Solution

The fourth proportional to 419,383,280.40, 629,074,920.60 and 237,984,752.40 is: 356,977,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,383,280.40 : 629,074,920.60 = 237,984,752.40 : x
  2. Step 2: Convert to fraction form
    419,383,280.40/629,074,920.60 = 237,984,752.40/x
  3. Step 3: Cross multiply
    419,383,280.40x = 629,074,920.60 × 237,984,752.40
  4. Step 4: Simplify right side
    419,383,280.40x = 149,710,239,220,040,672
  5. Step 5: Solve for x
    x = 149,710,239,220,040,672/419,383,280.40
  6. Step 6: Final answer
    x = 356,977,128.60

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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.