Finding the Fourth Proportional to 18,551,358.14, 27,828,943.97 and 6,420,801.78
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Solution
The fourth proportional to 18,551,358.14, 27,828,943.97 and 6,420,801.78 is: 9,631,862.62
Step by Step Solution
- Step 1: Write the proportion equation
18,551,358.14 : 27,828,943.97 = 6,420,801.78 : x - Step 2: Convert to fraction form
18,551,358.14/27,828,943.97 = 6,420,801.78/x - Step 3: Cross multiply
18,551,358.14x = 27,828,943.97 × 6,420,801.78 - Step 4: Simplify right side
18,551,358.14x = 178,684,132,945,992.25 - Step 5: Solve for x
x = 178,684,132,945,992.25/18,551,358.14 - Step 6: Final answer
x = 9,631,862.62
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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.