Home / 81,395,715,274.80-122,093,572,912.20-80,879,737,239.60

Finding the Fourth Proportional to 81,395,715,274.80, 122,093,572,912.20 and 80,879,737,239.60

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Solution

The fourth proportional to 81,395,715,274.80, 122,093,572,912.20 and 80,879,737,239.60 is: 121,319,605,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,395,715,274.80 : 122,093,572,912.20 = 80,879,737,239.60 : x
  2. Step 2: Convert to fraction form
    81,395,715,274.80/122,093,572,912.20 = 80,879,737,239.60/x
  3. Step 3: Cross multiply
    81,395,715,274.80x = 122,093,572,912.20 × 80,879,737,239.60
  4. Step 4: Simplify right side
    81,395,715,274.80x = 9,874,896,095,782,681,706,496
  5. Step 5: Solve for x
    x = 9,874,896,095,782,681,706,496/81,395,715,274.80
  6. Step 6: Final answer
    x = 121,319,605,859.40

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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.