Finding the Fourth Proportional to 121,190,715.34, 167,243,374.29 and 68,979,750.46
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Solution
The fourth proportional to 121,190,715.34, 167,243,374.29 and 68,979,750.46 is: 95,192,162.14
Step by Step Solution
- Step 1: Write the proportion equation
121,190,715.34 : 167,243,374.29 = 68,979,750.46 : x - Step 2: Convert to fraction form
121,190,715.34/167,243,374.29 = 68,979,750.46/x - Step 3: Cross multiply
121,190,715.34x = 167,243,374.29 × 68,979,750.46 - Step 4: Simplify right side
121,190,715.34x = 11,536,406,224,612,578 - Step 5: Solve for x
x = 11,536,406,224,612,578/121,190,715.34 - Step 6: Final answer
x = 95,192,162.14
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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.