Home / 1,213,285,273.54-1,820,031,530.77-426,270,559.94

Finding the Fourth Proportional to 1,213,285,273.54, 1,820,031,530.77 and 426,270,559.94

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Solution

The fourth proportional to 1,213,285,273.54, 1,820,031,530.77 and 426,270,559.94 is: 639,442,245.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,285,273.54 : 1,820,031,530.77 = 426,270,559.94 : x
  2. Step 2: Convert to fraction form
    1,213,285,273.54/1,820,031,530.77 = 426,270,559.94/x
  3. Step 3: Cross multiply
    1,213,285,273.54x = 1,820,031,530.77 × 426,270,559.94
  4. Step 4: Simplify right side
    1,213,285,273.54x = 775,825,859,728,062,464
  5. Step 5: Solve for x
    x = 775,825,859,728,062,464/1,213,285,273.54
  6. Step 6: Final answer
    x = 639,442,245.49

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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.