Finding the Fourth Proportional to 39,943,468.80, 55,121,865.12 and 21,608,749.44
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Solution
The fourth proportional to 39,943,468.80, 55,121,865.12 and 21,608,749.44 is: 29,820,008.32
Step by Step Solution
- Step 1: Write the proportion equation
39,943,468.80 : 55,121,865.12 = 21,608,749.44 : x - Step 2: Convert to fraction form
39,943,468.80/55,121,865.12 = 21,608,749.44/x - Step 3: Cross multiply
39,943,468.80x = 55,121,865.12 × 21,608,749.44 - Step 4: Simplify right side
39,943,468.80x = 1,191,114,572,043,555.50 - Step 5: Solve for x
x = 1,191,114,572,043,555.50/39,943,468.80 - Step 6: Final answer
x = 29,820,008.32
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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.