Finding the Fourth Proportional to 172,293,038.23, 237,765,137.21 and 93,978,274.09
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Solution
The fourth proportional to 172,293,038.23, 237,765,137.21 and 93,978,274.09 is: 129,690,424.31
Step by Step Solution
- Step 1: Write the proportion equation
172,293,038.23 : 237,765,137.21 = 93,978,274.09 : x - Step 2: Convert to fraction form
172,293,038.23/237,765,137.21 = 93,978,274.09/x - Step 3: Cross multiply
172,293,038.23x = 237,765,137.21 × 93,978,274.09 - Step 4: Simplify right side
172,293,038.23x = 22,344,757,233,055,956 - Step 5: Solve for x
x = 22,344,757,233,055,956/172,293,038.23 - Step 6: Final answer
x = 129,690,424.31
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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.