Home / 20,141,567,999.80-30,212,351,999.70-18,851,622,911.80

Finding the Fourth Proportional to 20,141,567,999.80, 30,212,351,999.70 and 18,851,622,911.80

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Solution

The fourth proportional to 20,141,567,999.80, 30,212,351,999.70 and 18,851,622,911.80 is: 28,277,434,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141,567,999.80 : 30,212,351,999.70 = 18,851,622,911.80 : x
  2. Step 2: Convert to fraction form
    20,141,567,999.80/30,212,351,999.70 = 18,851,622,911.80/x
  3. Step 3: Cross multiply
    20,141,567,999.80x = 30,212,351,999.70 × 18,851,622,911.80
  4. Step 4: Simplify right side
    20,141,567,999.80x = 569,551,867,176,911,044,608
  5. Step 5: Solve for x
    x = 569,551,867,176,911,044,608/20,141,567,999.80
  6. Step 6: Final answer
    x = 28,277,434,367.70

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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.