Finding the Fourth Proportional to 21,282,961.14, 29,370,485.86 and 11,493,404.52
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Solution
The fourth proportional to 21,282,961.14, 29,370,485.86 and 11,493,404.52 is: 15,860,897.96
Step by Step Solution
- Step 1: Write the proportion equation
21,282,961.14 : 29,370,485.86 = 11,493,404.52 : x - Step 2: Convert to fraction form
21,282,961.14/29,370,485.86 = 11,493,404.52/x - Step 3: Cross multiply
21,282,961.14x = 29,370,485.86 × 11,493,404.52 - Step 4: Simplify right side
21,282,961.14x = 337,566,874,937,920.06 - Step 5: Solve for x
x = 337,566,874,937,920.06/21,282,961.14 - Step 6: Final answer
x = 15,860,897.96
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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.