Home / 20,102,938,153.60-30,154,407,230.40-5,380,959,571.60

Finding the Fourth Proportional to 20,102,938,153.60, 30,154,407,230.40 and 5,380,959,571.60

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Solution

The fourth proportional to 20,102,938,153.60, 30,154,407,230.40 and 5,380,959,571.60 is: 8,071,439,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102,938,153.60 : 30,154,407,230.40 = 5,380,959,571.60 : x
  2. Step 2: Convert to fraction form
    20,102,938,153.60/30,154,407,230.40 = 5,380,959,571.60/x
  3. Step 3: Cross multiply
    20,102,938,153.60x = 30,154,407,230.40 × 5,380,959,571.60
  4. Step 4: Simplify right side
    20,102,938,153.60x = 162,259,646,212,345,135,104
  5. Step 5: Solve for x
    x = 162,259,646,212,345,135,104/20,102,938,153.60
  6. Step 6: Final answer
    x = 8,071,439,357.40

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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.