Finding the Fourth Proportional to 12,137,678.19, 18,193,800.87 and 5,655,408.51
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Solution
The fourth proportional to 12,137,678.19, 18,193,800.87 and 5,655,408.51 is: 8,477,187.70
Step by Step Solution
- Step 1: Write the proportion equation
12,137,678.19 : 18,193,800.87 = 5,655,408.51 : x - Step 2: Convert to fraction form
12,137,678.19/18,193,800.87 = 5,655,408.51/x - Step 3: Cross multiply
12,137,678.19x = 18,193,800.87 × 5,655,408.51 - Step 4: Simplify right side
12,137,678.19x = 102,893,376,269,443.41 - Step 5: Solve for x
x = 102,893,376,269,443.41/12,137,678.19 - Step 6: Final answer
x = 8,477,187.70
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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.