Home / 12,612,768,490.09-17,397,419,203.38-8,089,482,944.89

Finding the Fourth Proportional to 12,612,768,490.09, 17,397,419,203.38 and 8,089,482,944.89

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Solution

The fourth proportional to 12,612,768,490.09, 17,397,419,203.38 and 8,089,482,944.89 is: 11,158,226,367.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612,768,490.09 : 17,397,419,203.38 = 8,089,482,944.89 : x
  2. Step 2: Convert to fraction form
    12,612,768,490.09/17,397,419,203.38 = 8,089,482,944.89/x
  3. Step 3: Cross multiply
    12,612,768,490.09x = 17,397,419,203.38 × 8,089,482,944.89
  4. Step 4: Simplify right side
    12,612,768,490.09x = 140,736,125,930,844,291,072
  5. Step 5: Solve for x
    x = 140,736,125,930,844,291,072/12,612,768,490.09
  6. Step 6: Final answer
    x = 11,158,226,367.31

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Double scale
Find fourth proportional to 12,612,768,491.09, 17,397,419,204.76 and 8,089,482,945.89
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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.