Finding the Fourth Proportional to 139,833,261,750.96, 192,984,855,639.56 and 85,675,751,596.08
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Solution
The fourth proportional to 139,833,261,750.96, 192,984,855,639.56 and 85,675,751,596.08 is: 118,241,699,768.31
Step by Step Solution
- Step 1: Write the proportion equation
139,833,261,750.96 : 192,984,855,639.56 = 85,675,751,596.08 : x - Step 2: Convert to fraction form
139,833,261,750.96/192,984,855,639.56 = 85,675,751,596.08/x - Step 3: Cross multiply
139,833,261,750.96x = 192,984,855,639.56 × 85,675,751,596.08 - Step 4: Simplify right side
139,833,261,750.96x = 16,534,122,553,580,300,795,904 - Step 5: Solve for x
x = 16,534,122,553,580,300,795,904/139,833,261,750.96 - Step 6: Final answer
x = 118,241,699,768.31
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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.