Finding the Fourth Proportional to 21,826,431.90, 32,730,639.84 and 7,450,658.82
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Solution
The fourth proportional to 21,826,431.90, 32,730,639.84 and 7,450,658.82 is: 11,172,913.26
Step by Step Solution
- Step 1: Write the proportion equation
21,826,431.90 : 32,730,639.84 = 7,450,658.82 : x - Step 2: Convert to fraction form
21,826,431.90/32,730,639.84 = 7,450,658.82/x - Step 3: Cross multiply
21,826,431.90x = 32,730,639.84 × 7,450,658.82 - Step 4: Simplify right side
21,826,431.90x = 243,864,830,408,139.41 - Step 5: Solve for x
x = 243,864,830,408,139.41/21,826,431.90 - Step 6: Final answer
x = 11,172,913.26
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.