Home / 1,388,340,447.84-2,081,046,535.38-455,419,687.17

Finding the Fourth Proportional to 1,388,340,447.84, 2,081,046,535.38 and 455,419,687.17

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Solution

The fourth proportional to 1,388,340,447.84, 2,081,046,535.38 and 455,419,687.17 is: 682,649,247.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,340,447.84 : 2,081,046,535.38 = 455,419,687.17 : x
  2. Step 2: Convert to fraction form
    1,388,340,447.84/2,081,046,535.38 = 455,419,687.17/x
  3. Step 3: Cross multiply
    1,388,340,447.84x = 2,081,046,535.38 × 455,419,687.17
  4. Step 4: Simplify right side
    1,388,340,447.84x = 947,749,562,128,972,032
  5. Step 5: Solve for x
    x = 947,749,562,128,972,032/1,388,340,447.84
  6. Step 6: Final answer
    x = 682,649,247.60

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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.