Finding the Fourth Proportional to 21,580,357.04, 29,780,545.12 and 11,790,590.96
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Solution
The fourth proportional to 21,580,357.04, 29,780,545.12 and 11,790,590.96 is: 16,270,825.61
Step by Step Solution
- Step 1: Write the proportion equation
21,580,357.04 : 29,780,545.12 = 11,790,590.96 : x - Step 2: Convert to fraction form
21,580,357.04/29,780,545.12 = 11,790,590.96/x - Step 3: Cross multiply
21,580,357.04x = 29,780,545.12 × 11,790,590.96 - Step 4: Simplify right side
21,580,357.04x = 351,130,226,075,744.12 - Step 5: Solve for x
x = 351,130,226,075,744.12/21,580,357.04 - Step 6: Final answer
x = 16,270,825.61
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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.