Finding the Fourth Proportional to 7,729,820.40, 11,591,231.40 and 2,935,916.40
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Solution
The fourth proportional to 7,729,820.40, 11,591,231.40 and 2,935,916.40 is: 4,402,545.54
Step by Step Solution
- Step 1: Write the proportion equation
7,729,820.40 : 11,591,231.40 = 2,935,916.40 : x - Step 2: Convert to fraction form
7,729,820.40/11,591,231.40 = 2,935,916.40/x - Step 3: Cross multiply
7,729,820.40x = 11,591,231.40 × 2,935,916.40 - Step 4: Simplify right side
7,729,820.40x = 34,030,886,363,454.96 - Step 5: Solve for x
x = 34,030,886,363,454.96/7,729,820.40 - Step 6: Final answer
x = 4,402,545.54
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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.