Finding the Fourth Proportional to 5,435,818.70, 7,501,238.58 and 2,988,411.99
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Solution
The fourth proportional to 5,435,818.70, 7,501,238.58 and 2,988,411.99 is: 4,123,903.42
Step by Step Solution
- Step 1: Write the proportion equation
5,435,818.70 : 7,501,238.58 = 2,988,411.99 : x - Step 2: Convert to fraction form
5,435,818.70/7,501,238.58 = 2,988,411.99/x - Step 3: Cross multiply
5,435,818.70x = 7,501,238.58 × 2,988,411.99 - Step 4: Simplify right side
5,435,818.70x = 22,416,791,312,322.57 - Step 5: Solve for x
x = 22,416,791,312,322.57/5,435,818.70 - Step 6: Final answer
x = 4,123,903.42
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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.