Home / 30,546,523,941.08-42,157,872,770.76-18,503,181,380.79

Finding the Fourth Proportional to 30,546,523,941.08, 42,157,872,770.76 and 18,503,181,380.79

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Solution

The fourth proportional to 30,546,523,941.08, 42,157,872,770.76 and 18,503,181,380.79 is: 25,536,613,200.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,546,523,941.08 : 42,157,872,770.76 = 18,503,181,380.79 : x
  2. Step 2: Convert to fraction form
    30,546,523,941.08/42,157,872,770.76 = 18,503,181,380.79/x
  3. Step 3: Cross multiply
    30,546,523,941.08x = 42,157,872,770.76 × 18,503,181,380.79
  4. Step 4: Simplify right side
    30,546,523,941.08x = 780,054,766,505,640,198,144
  5. Step 5: Solve for x
    x = 780,054,766,505,640,198,144/30,546,523,941.08
  6. Step 6: Final answer
    x = 25,536,613,200.59

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Double scale
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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.