Finding the Fourth Proportional to 91,068,521.61, 125,674,559.85 and 49,252,586.63
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Solution
The fourth proportional to 91,068,521.61, 125,674,559.85 and 49,252,586.63 is: 67,968,569.56
Step by Step Solution
- Step 1: Write the proportion equation
91,068,521.61 : 125,674,559.85 = 49,252,586.63 : x - Step 2: Convert to fraction form
91,068,521.61/125,674,559.85 = 49,252,586.63/x - Step 3: Cross multiply
91,068,521.61x = 125,674,559.85 × 49,252,586.63 - Step 4: Simplify right side
91,068,521.61x = 6,189,797,145,858,422 - Step 5: Solve for x
x = 6,189,797,145,858,422/91,068,521.61 - Step 6: Final answer
x = 67,968,569.56
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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.