Finding the Fourth Proportional to 121,129,724.97, 167,159,699.60 and 68,918,759.55
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Solution
The fourth proportional to 121,129,724.97, 167,159,699.60 and 68,918,759.55 is: 95,108,274.58
Step by Step Solution
- Step 1: Write the proportion equation
121,129,724.97 : 167,159,699.60 = 68,918,759.55 : x - Step 2: Convert to fraction form
121,129,724.97/167,159,699.60 = 68,918,759.55/x - Step 3: Cross multiply
121,129,724.97x = 167,159,699.60 × 68,918,759.55 - Step 4: Simplify right side
121,129,724.97x = 11,520,439,142,838,036 - Step 5: Solve for x
x = 11,520,439,142,838,036/121,129,724.97 - Step 6: Final answer
x = 95,108,274.58
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.