Finding the Fourth Proportional to 115,894,793.67, 159,943,710.96 and 66,350,707.08
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Solution
The fourth proportional to 115,894,793.67, 159,943,710.96 and 66,350,707.08 is: 91,569,068.63
Step by Step Solution
- Step 1: Write the proportion equation
115,894,793.67 : 159,943,710.96 = 66,350,707.08 : x - Step 2: Convert to fraction form
115,894,793.67/159,943,710.96 = 66,350,707.08/x - Step 3: Cross multiply
115,894,793.67x = 159,943,710.96 × 66,350,707.08 - Step 4: Simplify right side
115,894,793.67x = 10,612,378,315,195,146 - Step 5: Solve for x
x = 10,612,378,315,195,146/115,894,793.67 - Step 6: Final answer
x = 91,569,068.63
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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.