Finding the Fourth Proportional to 7,426,639.84, 11,137,691.98 and 5,135,858.20
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Solution
The fourth proportional to 7,426,639.84, 11,137,691.98 and 5,135,858.20 is: 7,702,219.03
Step by Step Solution
- Step 1: Write the proportion equation
7,426,639.84 : 11,137,691.98 = 5,135,858.20 : x - Step 2: Convert to fraction form
7,426,639.84/11,137,691.98 = 5,135,858.20/x - Step 3: Cross multiply
7,426,639.84x = 11,137,691.98 × 5,135,858.20 - Step 4: Simplify right side
7,426,639.84x = 57,201,606,684,557.24 - Step 5: Solve for x
x = 57,201,606,684,557.24/7,426,639.84 - Step 6: Final answer
x = 7,702,219.03
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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.