Finding the Fourth Proportional to 21,027,795.05, 29,018,735.08 and 12,332,239.31
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Solution
The fourth proportional to 21,027,795.05, 29,018,735.08 and 12,332,239.31 is: 17,018,711.88
Step by Step Solution
- Step 1: Write the proportion equation
21,027,795.05 : 29,018,735.08 = 12,332,239.31 : x - Step 2: Convert to fraction form
21,027,795.05/29,018,735.08 = 12,332,239.31/x - Step 3: Cross multiply
21,027,795.05x = 29,018,735.08 × 12,332,239.31 - Step 4: Simplify right side
21,027,795.05x = 357,865,985,480,052 - Step 5: Solve for x
x = 357,865,985,480,052/21,027,795.05 - Step 6: Final answer
x = 17,018,711.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.