Finding the Fourth Proportional to 9,390,623.18, 12,971,216.22 and 7,765,594.70
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Solution
The fourth proportional to 9,390,623.18, 12,971,216.22 and 7,765,594.70 is: 10,726,573.31
Step by Step Solution
- Step 1: Write the proportion equation
9,390,623.18 : 12,971,216.22 = 7,765,594.70 : x - Step 2: Convert to fraction form
9,390,623.18/12,971,216.22 = 7,765,594.70/x - Step 3: Cross multiply
9,390,623.18x = 12,971,216.22 × 7,765,594.70 - Step 4: Simplify right side
9,390,623.18x = 100,729,207,930,586.05 - Step 5: Solve for x
x = 100,729,207,930,586.05/9,390,623.18 - Step 6: Final answer
x = 10,726,573.31
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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.