Finding the Fourth Proportional to 7,989,952.19, 11,026,134.42 and 4,318,856.72
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Solution
The fourth proportional to 7,989,952.19, 11,026,134.42 and 4,318,856.72 is: 5,960,022.49
Step by Step Solution
- Step 1: Write the proportion equation
7,989,952.19 : 11,026,134.42 = 4,318,856.72 : x - Step 2: Convert to fraction form
7,989,952.19/11,026,134.42 = 4,318,856.72/x - Step 3: Cross multiply
7,989,952.19x = 11,026,134.42 × 4,318,856.72 - Step 4: Simplify right side
7,989,952.19x = 47,620,294,705,461.92 - Step 5: Solve for x
x = 47,620,294,705,461.92/7,989,952.19 - Step 6: Final answer
x = 5,960,022.49
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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.