Finding the Fourth Proportional to 28,213,732.22, 38,935,377.07 and 15,826,571.51
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Solution
The fourth proportional to 28,213,732.22, 38,935,377.07 and 15,826,571.51 is: 21,840,907.99
Step by Step Solution
- Step 1: Write the proportion equation
28,213,732.22 : 38,935,377.07 = 15,826,571.51 : x - Step 2: Convert to fraction form
28,213,732.22/38,935,377.07 = 15,826,571.51/x - Step 3: Cross multiply
28,213,732.22x = 38,935,377.07 × 15,826,571.51 - Step 4: Simplify right side
28,213,732.22x = 616,213,529,232,926 - Step 5: Solve for x
x = 616,213,529,232,926/28,213,732.22 - Step 6: Final answer
x = 21,840,907.99
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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.