Finding the Fourth Proportional to 39,943,469.80, 55,121,866.50 and 21,608,750.44
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Solution
The fourth proportional to 39,943,469.80, 55,121,866.50 and 21,608,750.44 is: 29,820,009.70
Step by Step Solution
- Step 1: Write the proportion equation
39,943,469.80 : 55,121,866.50 = 21,608,750.44 : x - Step 2: Convert to fraction form
39,943,469.80/55,121,866.50 = 21,608,750.44/x - Step 3: Cross multiply
39,943,469.80x = 55,121,866.50 × 21,608,750.44 - Step 4: Simplify right side
39,943,469.80x = 1,191,114,656,985,496.25 - Step 5: Solve for x
x = 1,191,114,656,985,496.25/39,943,469.80 - Step 6: Final answer
x = 29,820,009.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.