Home / 20,694,361,743.96-28,563,532,743.54-13,478,390,771.04

Finding the Fourth Proportional to 20,694,361,743.96, 28,563,532,743.54 and 13,478,390,771.04

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Solution

The fourth proportional to 20,694,361,743.96, 28,563,532,743.54 and 13,478,390,771.04 is: 18,603,640,009.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694,361,743.96 : 28,563,532,743.54 = 13,478,390,771.04 : x
  2. Step 2: Convert to fraction form
    20,694,361,743.96/28,563,532,743.54 = 13,478,390,771.04/x
  3. Step 3: Cross multiply
    20,694,361,743.96x = 28,563,532,743.54 × 13,478,390,771.04
  4. Step 4: Simplify right side
    20,694,361,743.96x = 384,990,456,118,828,400,640
  5. Step 5: Solve for x
    x = 384,990,456,118,828,400,640/20,694,361,743.96
  6. Step 6: Final answer
    x = 18,603,640,009.88

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1.5x scale

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.