Finding the Fourth Proportional to 21,135,057.84, 31,692,592.80 and 8,187,272.64
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Solution
The fourth proportional to 21,135,057.84, 31,692,592.80 and 8,187,272.64 is: 12,277,037.51
Step by Step Solution
- Step 1: Write the proportion equation
21,135,057.84 : 31,692,592.80 = 8,187,272.64 : x - Step 2: Convert to fraction form
21,135,057.84/31,692,592.80 = 8,187,272.64/x - Step 3: Cross multiply
21,135,057.84x = 31,692,592.80 × 8,187,272.64 - Step 4: Simplify right side
21,135,057.84x = 259,475,897,922,101 - Step 5: Solve for x
x = 259,475,897,922,101/21,135,057.84 - Step 6: Final answer
x = 12,277,037.51
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.