Home / 419,670,984.20-629,506,476.30-132,456,648.20

Finding the Fourth Proportional to 419,670,984.20, 629,506,476.30 and 132,456,648.20

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Solution

The fourth proportional to 419,670,984.20, 629,506,476.30 and 132,456,648.20 is: 198,684,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,670,984.20 : 629,506,476.30 = 132,456,648.20 : x
  2. Step 2: Convert to fraction form
    419,670,984.20/629,506,476.30 = 132,456,648.20/x
  3. Step 3: Cross multiply
    419,670,984.20x = 629,506,476.30 × 132,456,648.20
  4. Step 4: Simplify right side
    419,670,984.20x = 83,382,317,870,890,736
  5. Step 5: Solve for x
    x = 83,382,317,870,890,736/419,670,984.20
  6. Step 6: Final answer
    x = 198,684,972.30

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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.