Finding the Fourth Proportional to 5,368,664.16, 7,408,646.60 and 2,921,323.68
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Solution
The fourth proportional to 5,368,664.16, 7,408,646.60 and 2,921,323.68 is: 4,031,366.85
Step by Step Solution
- Step 1: Write the proportion equation
5,368,664.16 : 7,408,646.60 = 2,921,323.68 : x - Step 2: Convert to fraction form
5,368,664.16/7,408,646.60 = 2,921,323.68/x - Step 3: Cross multiply
5,368,664.16x = 7,408,646.60 × 2,921,323.68 - Step 4: Simplify right side
5,368,664.16x = 21,643,054,734,724.87 - Step 5: Solve for x
x = 21,643,054,734,724.87/5,368,664.16 - Step 6: Final answer
x = 4,031,366.85
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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.