Finding the Fourth Proportional to 8,428,698.17, 11,631,603.12 and 4,561,219.46
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Solution
The fourth proportional to 8,428,698.17, 11,631,603.12 and 4,561,219.46 is: 6,294,482.66
Step by Step Solution
- Step 1: Write the proportion equation
8,428,698.17 : 11,631,603.12 = 4,561,219.46 : x - Step 2: Convert to fraction form
8,428,698.17/11,631,603.12 = 4,561,219.46/x - Step 3: Cross multiply
8,428,698.17x = 11,631,603.12 × 4,561,219.46 - Step 4: Simplify right side
8,428,698.17x = 53,054,294,501,940.71 - Step 5: Solve for x
x = 53,054,294,501,940.71/8,428,698.17 - Step 6: Final answer
x = 6,294,482.66
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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.