Home / 418,297,896.20-626,235,185.52-315,101,714.06

Finding the Fourth Proportional to 418,297,896.20, 626,235,185.52 and 315,101,714.06

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Solution

The fourth proportional to 418,297,896.20, 626,235,185.52 and 315,101,714.06 is: 471,739,834.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,297,896.20 : 626,235,185.52 = 315,101,714.06 : x
  2. Step 2: Convert to fraction form
    418,297,896.20/626,235,185.52 = 315,101,714.06/x
  3. Step 3: Cross multiply
    418,297,896.20x = 626,235,185.52 × 315,101,714.06
  4. Step 4: Simplify right side
    418,297,896.20x = 197,327,780,358,902,912
  5. Step 5: Solve for x
    x = 197,327,780,358,902,912/418,297,896.20
  6. Step 6: Final answer
    x = 471,739,834.59

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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.