Finding the Fourth Proportional to 10,203,899.58, 14,081,380.92 and 5,620,221.18
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Solution
The fourth proportional to 10,203,899.58, 14,081,380.92 and 5,620,221.18 is: 7,755,904.95
Step by Step Solution
- Step 1: Write the proportion equation
10,203,899.58 : 14,081,380.92 = 5,620,221.18 : x - Step 2: Convert to fraction form
10,203,899.58/14,081,380.92 = 5,620,221.18/x - Step 3: Cross multiply
10,203,899.58x = 14,081,380.92 × 5,620,221.18 - Step 4: Simplify right side
10,203,899.58x = 79,140,475,290,231.88 - Step 5: Solve for x
x = 79,140,475,290,231.88/10,203,899.58 - Step 6: Final answer
x = 7,755,904.95
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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.