Home / 1,256,382,408.96-1,885,434,460.16-438,494,709.76

Finding the Fourth Proportional to 1,256,382,408.96, 1,885,434,460.16 and 438,494,709.76

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Solution

The fourth proportional to 1,256,382,408.96, 1,885,434,460.16 and 438,494,709.76 is: 658,042,511.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,382,408.96 : 1,885,434,460.16 = 438,494,709.76 : x
  2. Step 2: Convert to fraction form
    1,256,382,408.96/1,885,434,460.16 = 438,494,709.76/x
  3. Step 3: Cross multiply
    1,256,382,408.96x = 1,885,434,460.16 × 438,494,709.76
  4. Step 4: Simplify right side
    1,256,382,408.96x = 826,753,036,379,361,536
  5. Step 5: Solve for x
    x = 826,753,036,379,361,536/1,256,382,408.96
  6. Step 6: Final answer
    x = 658,042,511.96

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1.5x scale

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.