Finding the Fourth Proportional to 80,861,991.78, 121,305,528.41 and 34,175,674.06
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Solution
The fourth proportional to 80,861,991.78, 121,305,528.41 and 34,175,674.06 is: 51,268,811.32
Step by Step Solution
- Step 1: Write the proportion equation
80,861,991.78 : 121,305,528.41 = 34,175,674.06 : x - Step 2: Convert to fraction form
80,861,991.78/121,305,528.41 = 34,175,674.06/x - Step 3: Cross multiply
80,861,991.78x = 121,305,528.41 × 34,175,674.06 - Step 4: Simplify right side
80,861,991.78x = 4,145,698,199,838,824 - Step 5: Solve for x
x = 4,145,698,199,838,824/80,861,991.78 - Step 6: Final answer
x = 51,268,811.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.