Finding the Fourth Proportional to 7,884,920.40, 11,832,046.20 and 5,749,630.80
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Solution
The fourth proportional to 7,884,920.40, 11,832,046.20 and 5,749,630.80 is: 8,627,848.32
Step by Step Solution
- Step 1: Write the proportion equation
7,884,920.40 : 11,832,046.20 = 5,749,630.80 : x - Step 2: Convert to fraction form
7,884,920.40/11,832,046.20 = 5,749,630.80/x - Step 3: Cross multiply
7,884,920.40x = 11,832,046.20 × 5,749,630.80 - Step 4: Simplify right side
7,884,920.40x = 68,029,897,258,542.95 - Step 5: Solve for x
x = 68,029,897,258,542.95/7,884,920.40 - Step 6: Final answer
x = 8,627,848.32
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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.