Home / 1,813,691,203.78-2,503,666,151.72-1,219,320,401.44

Finding the Fourth Proportional to 1,813,691,203.78, 2,503,666,151.72 and 1,219,320,401.44

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Solution

The fourth proportional to 1,813,691,203.78, 2,503,666,151.72 and 1,219,320,401.44 is: 1,683,181,354.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813,691,203.78 : 2,503,666,151.72 = 1,219,320,401.44 : x
  2. Step 2: Convert to fraction form
    1,813,691,203.78/2,503,666,151.72 = 1,219,320,401.44/x
  3. Step 3: Cross multiply
    1,813,691,203.78x = 2,503,666,151.72 × 1,219,320,401.44
  4. Step 4: Simplify right side
    1,813,691,203.78x = 3,052,771,217,186,970,112
  5. Step 5: Solve for x
    x = 3,052,771,217,186,970,112/1,813,691,203.78
  6. Step 6: Final answer
    x = 1,683,181,354.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.