Finding the Fourth Proportional to 28,377,272.95, 39,160,635.97 and 15,324,530.79
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Solution
The fourth proportional to 28,377,272.95, 39,160,635.97 and 15,324,530.79 is: 21,147,852.12
Step by Step Solution
- Step 1: Write the proportion equation
28,377,272.95 : 39,160,635.97 = 15,324,530.79 : x - Step 2: Convert to fraction form
28,377,272.95/39,160,635.97 = 15,324,530.79/x - Step 3: Cross multiply
28,377,272.95x = 39,160,635.97 × 15,324,530.79 - Step 4: Simplify right side
28,377,272.95x = 600,118,371,896,932.12 - Step 5: Solve for x
x = 600,118,371,896,932.12/28,377,272.95 - Step 6: Final answer
x = 21,147,852.12
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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.