Finding the Fourth Proportional to 168,935,877.84, 233,131,511.34 and 91,673,541.84
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Solution
The fourth proportional to 168,935,877.84, 233,131,511.34 and 91,673,541.84 is: 126,509,487.70
Step by Step Solution
- Step 1: Write the proportion equation
168,935,877.84 : 233,131,511.34 = 91,673,541.84 : x - Step 2: Convert to fraction form
168,935,877.84/233,131,511.34 = 91,673,541.84/x - Step 3: Cross multiply
168,935,877.84x = 233,131,511.34 × 91,673,541.84 - Step 4: Simplify right side
168,935,877.84x = 21,371,991,359,049,924 - Step 5: Solve for x
x = 21,371,991,359,049,924/168,935,877.84 - Step 6: Final answer
x = 126,509,487.70
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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.