Finding the Fourth Proportional to 21,334,868.15, 29,441,893.70 and 11,545,097.99
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Solution
The fourth proportional to 21,334,868.15, 29,441,893.70 and 11,545,097.99 is: 15,932,113.82
Step by Step Solution
- Step 1: Write the proportion equation
21,334,868.15 : 29,441,893.70 = 11,545,097.99 : x - Step 2: Convert to fraction form
21,334,868.15/29,441,893.70 = 11,545,097.99/x - Step 3: Cross multiply
21,334,868.15x = 29,441,893.70 × 11,545,097.99 - Step 4: Simplify right side
21,334,868.15x = 339,909,547,659,316.94 - Step 5: Solve for x
x = 339,909,547,659,316.94/21,334,868.15 - Step 6: Final answer
x = 15,932,113.82
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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.