Finding the Fourth Proportional to 7,960,311.79, 10,985,526.80 and 4,523,135.47
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Solution
The fourth proportional to 7,960,311.79, 10,985,526.80 and 4,523,135.47 is: 6,242,095.44
Step by Step Solution
- Step 1: Write the proportion equation
7,960,311.79 : 10,985,526.80 = 4,523,135.47 : x - Step 2: Convert to fraction form
7,960,311.79/10,985,526.80 = 4,523,135.47/x - Step 3: Cross multiply
7,960,311.79x = 10,985,526.80 × 4,523,135.47 - Step 4: Simplify right side
7,960,311.79x = 49,689,025,925,715.59 - Step 5: Solve for x
x = 49,689,025,925,715.59/7,960,311.79 - Step 6: Final answer
x = 6,242,095.44
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.