Finding the Fourth Proportional to 170,080,897.66, 234,586,316.78 and 128,266,723.08
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Solution
The fourth proportional to 170,080,897.66, 234,586,316.78 and 128,266,723.08 is: 176,913,566.11
Step by Step Solution
- Step 1: Write the proportion equation
170,080,897.66 : 234,586,316.78 = 128,266,723.08 : x - Step 2: Convert to fraction form
170,080,897.66/234,586,316.78 = 128,266,723.08/x - Step 3: Cross multiply
170,080,897.66x = 234,586,316.78 × 128,266,723.08 - Step 4: Simplify right side
170,080,897.66x = 30,089,618,132,777,416 - Step 5: Solve for x
x = 30,089,618,132,777,416/170,080,897.66 - Step 6: Final answer
x = 176,913,566.11
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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.