Finding the Fourth Proportional to 28,773,828.44, 39,707,419.92 and 15,720,806.96
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Solution
The fourth proportional to 28,773,828.44, 39,707,419.92 and 15,720,806.96 is: 21,694,460.46
Step by Step Solution
- Step 1: Write the proportion equation
28,773,828.44 : 39,707,419.92 = 15,720,806.96 : x - Step 2: Convert to fraction form
28,773,828.44/39,707,419.92 = 15,720,806.96/x - Step 3: Cross multiply
28,773,828.44x = 39,707,419.92 × 15,720,806.96 - Step 4: Simplify right side
28,773,828.44x = 624,232,683,441,978.75 - Step 5: Solve for x
x = 624,232,683,441,978.75/28,773,828.44 - Step 6: Final answer
x = 21,694,460.46
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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.