Home / 419,670,983.70-629,506,475.55-132,456,647.70

Finding the Fourth Proportional to 419,670,983.70, 629,506,475.55 and 132,456,647.70

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Solution

The fourth proportional to 419,670,983.70, 629,506,475.55 and 132,456,647.70 is: 198,684,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,670,983.70 : 629,506,475.55 = 132,456,647.70 : x
  2. Step 2: Convert to fraction form
    419,670,983.70/629,506,475.55 = 132,456,647.70/x
  3. Step 3: Cross multiply
    419,670,983.70x = 629,506,475.55 × 132,456,647.70
  4. Step 4: Simplify right side
    419,670,983.70x = 83,382,317,456,795,008
  5. Step 5: Solve for x
    x = 83,382,317,456,795,008/419,670,983.70
  6. Step 6: Final answer
    x = 198,684,971.55

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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.