Home / 1,275,945,005.52-1,914,240,312.72-355,821,442.56

Finding the Fourth Proportional to 1,275,945,005.52, 1,914,240,312.72 and 355,821,442.56

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Solution

The fourth proportional to 1,275,945,005.52, 1,914,240,312.72 and 355,821,442.56 is: 533,822,183.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,945,005.52 : 1,914,240,312.72 = 355,821,442.56 : x
  2. Step 2: Convert to fraction form
    1,275,945,005.52/1,914,240,312.72 = 355,821,442.56/x
  3. Step 3: Cross multiply
    1,275,945,005.52x = 1,914,240,312.72 × 355,821,442.56
  4. Step 4: Simplify right side
    1,275,945,005.52x = 681,127,749,478,535,936
  5. Step 5: Solve for x
    x = 681,127,749,478,535,936/1,275,945,005.52
  6. Step 6: Final answer
    x = 533,822,183.97

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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.