Finding the Fourth Proportional to 208,705,317.39, 311,652,539.08 and 170,442,731.79
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Solution
The fourth proportional to 208,705,317.39, 311,652,539.08 and 170,442,731.79 is: 254,516,323.75
Step by Step Solution
- Step 1: Write the proportion equation
208,705,317.39 : 311,652,539.08 = 170,442,731.79 : x - Step 2: Convert to fraction form
208,705,317.39/311,652,539.08 = 170,442,731.79/x - Step 3: Cross multiply
208,705,317.39x = 311,652,539.08 × 170,442,731.79 - Step 4: Simplify right side
208,705,317.39x = 53,118,910,129,658,824 - Step 5: Solve for x
x = 53,118,910,129,658,824/208,705,317.39 - Step 6: Final answer
x = 254,516,323.75
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.