Finding the Fourth Proportional to 21,541,819.08, 29,727,567.44 and 12,249,389.82
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Solution
The fourth proportional to 21,541,819.08, 29,727,567.44 and 12,249,389.82 is: 16,904,076.70
Step by Step Solution
- Step 1: Write the proportion equation
21,541,819.08 : 29,727,567.44 = 12,249,389.82 : x - Step 2: Convert to fraction form
21,541,819.08/29,727,567.44 = 12,249,389.82/x - Step 3: Cross multiply
21,541,819.08x = 29,727,567.44 × 12,249,389.82 - Step 4: Simplify right side
21,541,819.08x = 364,144,561,887,956.69 - Step 5: Solve for x
x = 364,144,561,887,956.69/21,541,819.08 - Step 6: Final answer
x = 16,904,076.70
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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.