Finding the Fourth Proportional to 91,303,752.25, 125,985,722.34 and 55,521,939.07
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Solution
The fourth proportional to 91,303,752.25, 125,985,722.34 and 55,521,939.07 is: 76,612,093.45
Step by Step Solution
- Step 1: Write the proportion equation
91,303,752.25 : 125,985,722.34 = 55,521,939.07 : x - Step 2: Convert to fraction form
91,303,752.25/125,985,722.34 = 55,521,939.07/x - Step 3: Cross multiply
91,303,752.25x = 125,985,722.34 × 55,521,939.07 - Step 4: Simplify right side
91,303,752.25x = 6,994,971,599,344,661 - Step 5: Solve for x
x = 6,994,971,599,344,661/91,303,752.25 - Step 6: Final answer
x = 76,612,093.45
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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.