Finding the Fourth Proportional to 171,937,106.40, 257,905,659.60 and 110,715,103.20
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Solution
The fourth proportional to 171,937,106.40, 257,905,659.60 and 110,715,103.20 is: 166,072,654.80
Step by Step Solution
- Step 1: Write the proportion equation
171,937,106.40 : 257,905,659.60 = 110,715,103.20 : x - Step 2: Convert to fraction form
171,937,106.40/257,905,659.60 = 110,715,103.20/x - Step 3: Cross multiply
171,937,106.40x = 257,905,659.60 × 110,715,103.20 - Step 4: Simplify right side
171,937,106.40x = 28,554,051,718,478,072 - Step 5: Solve for x
x = 28,554,051,718,478,072/171,937,106.40 - Step 6: Final answer
x = 166,072,654.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.