Finding the Fourth Proportional to 7,755,763.74, 11,616,321.33 and 5,620,947.18
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Solution
The fourth proportional to 7,755,763.74, 11,616,321.33 and 5,620,947.18 is: 8,418,865.09
Step by Step Solution
- Step 1: Write the proportion equation
7,755,763.74 : 11,616,321.33 = 5,620,947.18 : x - Step 2: Convert to fraction form
7,755,763.74/11,616,321.33 = 5,620,947.18/x - Step 3: Cross multiply
7,755,763.74x = 11,616,321.33 × 5,620,947.18 - Step 4: Simplify right side
7,755,763.74x = 65,294,728,621,837.34 - Step 5: Solve for x
x = 65,294,728,621,837.34/7,755,763.74 - Step 6: Final answer
x = 8,418,865.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.