Finding the Fourth Proportional to 21,576,567.98, 32,377,620.81 and 7,939,290.94
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Solution
The fourth proportional to 21,576,567.98, 32,377,620.81 and 7,939,290.94 is: 11,913,634.81
Step by Step Solution
- Step 1: Write the proportion equation
21,576,567.98 : 32,377,620.81 = 7,939,290.94 : x - Step 2: Convert to fraction form
21,576,567.98/32,377,620.81 = 7,939,290.94/x - Step 3: Cross multiply
21,576,567.98x = 32,377,620.81 × 7,939,290.94 - Step 4: Simplify right side
21,576,567.98x = 257,055,351,504,416.75 - Step 5: Solve for x
x = 257,055,351,504,416.75/21,576,567.98 - Step 6: Final answer
x = 11,913,634.81
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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.