Home / 879,370,019.69-1,319,097,452.70-289,147,192.22

Finding the Fourth Proportional to 879,370,019.69, 1,319,097,452.70 and 289,147,192.22

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Solution

The fourth proportional to 879,370,019.69, 1,319,097,452.70 and 289,147,192.22 is: 433,734,737.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,370,019.69 : 1,319,097,452.70 = 289,147,192.22 : x
  2. Step 2: Convert to fraction form
    879,370,019.69/1,319,097,452.70 = 289,147,192.22/x
  3. Step 3: Cross multiply
    879,370,019.69x = 1,319,097,452.70 × 289,147,192.22
  4. Step 4: Simplify right side
    879,370,019.69x = 381,413,324,706,163,776
  5. Step 5: Solve for x
    x = 381,413,324,706,163,776/879,370,019.69
  6. Step 6: Final answer
    x = 433,734,737.56

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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.