Finding the Fourth Proportional to 21,646,733.87, 29,864,177.88 and 12,354,819.68
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Solution
The fourth proportional to 21,646,733.87, 29,864,177.88 and 12,354,819.68 is: 17,044,905.47
Step by Step Solution
- Step 1: Write the proportion equation
21,646,733.87 : 29,864,177.88 = 12,354,819.68 : x - Step 2: Convert to fraction form
21,646,733.87/29,864,177.88 = 12,354,819.68/x - Step 3: Cross multiply
21,646,733.87x = 29,864,177.88 × 12,354,819.68 - Step 4: Simplify right side
21,646,733.87x = 368,966,532,598,844.69 - Step 5: Solve for x
x = 368,966,532,598,844.69/21,646,733.87 - Step 6: Final answer
x = 17,044,905.47
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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.