Finding the Fourth Proportional to 122,750,908.32, 169,393,849.92 and 66,996,729.12
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Solution
The fourth proportional to 122,750,908.32, 169,393,849.92 and 66,996,729.12 is: 92,454,174.34
Step by Step Solution
- Step 1: Write the proportion equation
122,750,908.32 : 169,393,849.92 = 66,996,729.12 : x - Step 2: Convert to fraction form
122,750,908.32/169,393,849.92 = 66,996,729.12/x - Step 3: Cross multiply
122,750,908.32x = 169,393,849.92 × 66,996,729.12 - Step 4: Simplify right side
122,750,908.32x = 11,348,833,877,684,172 - Step 5: Solve for x
x = 11,348,833,877,684,172/122,750,908.32 - Step 6: Final answer
x = 92,454,174.34
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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.