Home / 879,308,745.12-1,213,390,878.30-482,828,958.54

Finding the Fourth Proportional to 879,308,745.12, 1,213,390,878.30 and 482,828,958.54

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Solution

The fourth proportional to 879,308,745.12, 1,213,390,878.30 and 482,828,958.54 is: 666,273,657.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,308,745.12 : 1,213,390,878.30 = 482,828,958.54 : x
  2. Step 2: Convert to fraction form
    879,308,745.12/1,213,390,878.30 = 482,828,958.54/x
  3. Step 3: Cross multiply
    879,308,745.12x = 1,213,390,878.30 × 482,828,958.54
  4. Step 4: Simplify right side
    879,308,745.12x = 585,860,254,071,524,864
  5. Step 5: Solve for x
    x = 585,860,254,071,524,864/879,308,745.12
  6. Step 6: Final answer
    x = 666,273,657.94

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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.