Finding the Fourth Proportional to 10,658,538.90, 15,987,808.35 and 8,957,927.70
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Solution
The fourth proportional to 10,658,538.90, 15,987,808.35 and 8,957,927.70 is: 13,436,891.55
Step by Step Solution
- Step 1: Write the proportion equation
10,658,538.90 : 15,987,808.35 = 8,957,927.70 : x - Step 2: Convert to fraction form
10,658,538.90/15,987,808.35 = 8,957,927.70/x - Step 3: Cross multiply
10,658,538.90x = 15,987,808.35 × 8,957,927.70 - Step 4: Simplify right side
10,658,538.90x = 143,217,631,280,756.28 - Step 5: Solve for x
x = 143,217,631,280,756.28/10,658,538.90 - Step 6: Final answer
x = 13,436,891.55
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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.