Finding the Fourth Proportional to 18,403,087.80, 27,604,631.70 and 4,941,276.60
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Solution
The fourth proportional to 18,403,087.80, 27,604,631.70 and 4,941,276.60 is: 7,411,914.90
Step by Step Solution
- Step 1: Write the proportion equation
18,403,087.80 : 27,604,631.70 = 4,941,276.60 : x - Step 2: Convert to fraction form
18,403,087.80/27,604,631.70 = 4,941,276.60/x - Step 3: Cross multiply
18,403,087.80x = 27,604,631.70 × 4,941,276.60 - Step 4: Simplify right side
18,403,087.80x = 136,402,120,670,828.20 - Step 5: Solve for x
x = 136,402,120,670,828.20/18,403,087.80 - Step 6: Final answer
x = 7,411,914.90
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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.