Home / 1,025,378,144.70-1,538,109,207.45-298,366,856.70

Finding the Fourth Proportional to 1,025,378,144.70, 1,538,109,207.45 and 298,366,856.70

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Solution

The fourth proportional to 1,025,378,144.70, 1,538,109,207.45 and 298,366,856.70 is: 447,562,503.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,378,144.70 : 1,538,109,207.45 = 298,366,856.70 : x
  2. Step 2: Convert to fraction form
    1,025,378,144.70/1,538,109,207.45 = 298,366,856.70/x
  3. Step 3: Cross multiply
    1,025,378,144.70x = 1,538,109,207.45 × 298,366,856.70
  4. Step 4: Simplify right side
    1,025,378,144.70x = 458,920,809,488,184,704
  5. Step 5: Solve for x
    x = 458,920,809,488,184,704/1,025,378,144.70
  6. Step 6: Final answer
    x = 447,562,503.51

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Double scale
Find fourth proportional to 1,025,378,145.70, 1,538,109,208.95 and 298,366,857.70
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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.