Finding the Fourth Proportional to 28,643,998.14, 42,965,576.47 and 7,078,599.31
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Solution
The fourth proportional to 28,643,998.14, 42,965,576.47 and 7,078,599.31 is: 10,617,794.99
Step by Step Solution
- Step 1: Write the proportion equation
28,643,998.14 : 42,965,576.47 = 7,078,599.31 : x - Step 2: Convert to fraction form
28,643,998.14/42,965,576.47 = 7,078,599.31/x - Step 3: Cross multiply
28,643,998.14x = 42,965,576.47 × 7,078,599.31 - Step 4: Simplify right side
28,643,998.14x = 304,136,099,954,294.19 - Step 5: Solve for x
x = 304,136,099,954,294.19/28,643,998.14 - Step 6: Final answer
x = 10,617,794.99
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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.