Finding the Fourth Proportional to 19,879,085.80, 29,818,628.70 and 19,753,114.60
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Solution
The fourth proportional to 19,879,085.80, 29,818,628.70 and 19,753,114.60 is: 29,629,671.90
Step by Step Solution
- Step 1: Write the proportion equation
19,879,085.80 : 29,818,628.70 = 19,753,114.60 : x - Step 2: Convert to fraction form
19,879,085.80/29,818,628.70 = 19,753,114.60/x - Step 3: Cross multiply
19,879,085.80x = 29,818,628.70 × 19,753,114.60 - Step 4: Simplify right side
19,879,085.80x = 589,010,789,925,949 - Step 5: Solve for x
x = 589,010,789,925,949/19,879,085.80 - Step 6: Final answer
x = 29,629,671.90
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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.