Finding the Fourth Proportional to 11,436,747.46, 15,782,985.70 and 6,209,975.90
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Solution
The fourth proportional to 11,436,747.46, 15,782,985.70 and 6,209,975.90 is: 8,569,915.63
Step by Step Solution
- Step 1: Write the proportion equation
11,436,747.46 : 15,782,985.70 = 6,209,975.90 : x - Step 2: Convert to fraction form
11,436,747.46/15,782,985.70 = 6,209,975.90/x - Step 3: Cross multiply
11,436,747.46x = 15,782,985.70 × 6,209,975.90 - Step 4: Simplify right side
11,436,747.46x = 98,011,960,827,044.62 - Step 5: Solve for x
x = 98,011,960,827,044.62/11,436,747.46 - Step 6: Final answer
x = 8,569,915.63
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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.