Home / 879,308,745.87-1,213,390,879.34-482,828,959.29

Finding the Fourth Proportional to 879,308,745.87, 1,213,390,879.34 and 482,828,959.29

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Solution

The fourth proportional to 879,308,745.87, 1,213,390,879.34 and 482,828,959.29 is: 666,273,658.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,308,745.87 : 1,213,390,879.34 = 482,828,959.29 : x
  2. Step 2: Convert to fraction form
    879,308,745.87/1,213,390,879.34 = 482,828,959.29/x
  3. Step 3: Cross multiply
    879,308,745.87x = 1,213,390,879.34 × 482,828,959.29
  4. Step 4: Simplify right side
    879,308,745.87x = 585,860,255,481,296,000
  5. Step 5: Solve for x
    x = 585,860,255,481,296,000/879,308,745.87
  6. Step 6: Final answer
    x = 666,273,658.98

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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.