Finding the Fourth Proportional to 207,919,393.16, 286,932,160.35 and 113,831,970.44
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Solution
The fourth proportional to 207,919,393.16, 286,932,160.35 and 113,831,970.44 is: 157,089,979.43
Step by Step Solution
- Step 1: Write the proportion equation
207,919,393.16 : 286,932,160.35 = 113,831,970.44 : x - Step 2: Convert to fraction form
207,919,393.16/286,932,160.35 = 113,831,970.44/x - Step 3: Cross multiply
207,919,393.16x = 286,932,160.35 × 113,831,970.44 - Step 4: Simplify right side
207,919,393.16x = 32,662,053,193,811,884 - Step 5: Solve for x
x = 32,662,053,193,811,884/207,919,393.16 - Step 6: Final answer
x = 157,089,979.43
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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.