Finding the Fourth Proportional to 168,117,415.80, 252,176,123.70 and 91,589,911.80
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Solution
The fourth proportional to 168,117,415.80, 252,176,123.70 and 91,589,911.80 is: 137,384,867.70
Step by Step Solution
- Step 1: Write the proportion equation
168,117,415.80 : 252,176,123.70 = 91,589,911.80 : x - Step 2: Convert to fraction form
168,117,415.80/252,176,123.70 = 91,589,911.80/x - Step 3: Cross multiply
168,117,415.80x = 252,176,123.70 × 91,589,911.80 - Step 4: Simplify right side
168,117,415.80x = 23,096,788,927,748,888 - Step 5: Solve for x
x = 23,096,788,927,748,888/168,117,415.80 - Step 6: Final answer
x = 137,384,867.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.