Finding the Fourth Proportional to 18,678,483.57, 27,991,387.98 and 8,820,028.14
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Solution
The fourth proportional to 18,678,483.57, 27,991,387.98 and 8,820,028.14 is: 13,217,605.63
Step by Step Solution
- Step 1: Write the proportion equation
18,678,483.57 : 27,991,387.98 = 8,820,028.14 : x - Step 2: Convert to fraction form
18,678,483.57/27,991,387.98 = 8,820,028.14/x - Step 3: Cross multiply
18,678,483.57x = 27,991,387.98 × 8,820,028.14 - Step 4: Simplify right side
18,678,483.57x = 246,884,829,661,257.78 - Step 5: Solve for x
x = 246,884,829,661,257.78/18,678,483.57 - Step 6: Final answer
x = 13,217,605.63
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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.