Home / 879,370,018.94-1,319,097,451.57-289,147,191.46

Finding the Fourth Proportional to 879,370,018.94, 1,319,097,451.57 and 289,147,191.46

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Solution

The fourth proportional to 879,370,018.94, 1,319,097,451.57 and 289,147,191.46 is: 433,734,736.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,370,018.94 : 1,319,097,451.57 = 289,147,191.46 : x
  2. Step 2: Convert to fraction form
    879,370,018.94/1,319,097,451.57 = 289,147,191.46/x
  3. Step 3: Cross multiply
    879,370,018.94x = 1,319,097,451.57 × 289,147,191.46
  4. Step 4: Simplify right side
    879,370,018.94x = 381,413,323,388,520,832
  5. Step 5: Solve for x
    x = 381,413,323,388,520,832/879,370,018.94
  6. Step 6: Final answer
    x = 433,734,736.43

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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.