Finding the Fourth Proportional to 28,833,129.89, 39,789,824.70 and 15,602,306.92
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Solution
The fourth proportional to 28,833,129.89, 39,789,824.70 and 15,602,306.92 is: 21,531,240.61
Step by Step Solution
- Step 1: Write the proportion equation
28,833,129.89 : 39,789,824.70 = 15,602,306.92 : x - Step 2: Convert to fraction form
28,833,129.89/39,789,824.70 = 15,602,306.92/x - Step 3: Cross multiply
28,833,129.89x = 39,789,824.70 × 15,602,306.92 - Step 4: Simplify right side
28,833,129.89x = 620,813,057,262,397 - Step 5: Solve for x
x = 620,813,057,262,397/28,833,129.89 - Step 6: Final answer
x = 21,531,240.61
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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.