Finding the Fourth Proportional to 18,473,999.60, 27,636,349.80 and 15,977,385.20
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Solution
The fourth proportional to 18,473,999.60, 27,636,349.80 and 15,977,385.20 is: 23,901,516.50
Step by Step Solution
- Step 1: Write the proportion equation
18,473,999.60 : 27,636,349.80 = 15,977,385.20 : x - Step 2: Convert to fraction form
18,473,999.60/27,636,349.80 = 15,977,385.20/x - Step 3: Cross multiply
18,473,999.60x = 27,636,349.80 × 15,977,385.20 - Step 4: Simplify right side
18,473,999.60x = 441,556,606,276,542.94 - Step 5: Solve for x
x = 441,556,606,276,542.94/18,473,999.60 - Step 6: Final answer
x = 23,901,516.50
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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.