Home / 419,397,638.82-629,096,126.31-112,689,752.10

Finding the Fourth Proportional to 419,397,638.82, 629,096,126.31 and 112,689,752.10

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Solution

The fourth proportional to 419,397,638.82, 629,096,126.31 and 112,689,752.10 is: 169,034,538.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,397,638.82 : 629,096,126.31 = 112,689,752.10 : x
  2. Step 2: Convert to fraction form
    419,397,638.82/629,096,126.31 = 112,689,752.10/x
  3. Step 3: Cross multiply
    419,397,638.82x = 629,096,126.31 × 112,689,752.10
  4. Step 4: Simplify right side
    419,397,638.82x = 70,892,686,520,944,176
  5. Step 5: Solve for x
    x = 70,892,686,520,944,176/419,397,638.82
  6. Step 6: Final answer
    x = 169,034,538.96

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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.