Finding the Fourth Proportional to 98,474,242.70, 135,913,232.81 and 64,924,815.26
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Solution
The fourth proportional to 98,474,242.70, 135,913,232.81 and 64,924,815.26 is: 89,608,625.46
Step by Step Solution
- Step 1: Write the proportion equation
98,474,242.70 : 135,913,232.81 = 64,924,815.26 : x - Step 2: Convert to fraction form
98,474,242.70/135,913,232.81 = 64,924,815.26/x - Step 3: Cross multiply
98,474,242.70x = 135,913,232.81 × 64,924,815.26 - Step 4: Simplify right side
98,474,242.70x = 8,824,141,531,578,621 - Step 5: Solve for x
x = 8,824,141,531,578,621/98,474,242.70 - Step 6: Final answer
x = 89,608,625.46
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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.