Finding the Fourth Proportional to 12,492,090.90, 18,738,136.35 and 6,106,439.70
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Solution
The fourth proportional to 12,492,090.90, 18,738,136.35 and 6,106,439.70 is: 9,159,659.55
Step by Step Solution
- Step 1: Write the proportion equation
12,492,090.90 : 18,738,136.35 = 6,106,439.70 : x - Step 2: Convert to fraction form
12,492,090.90/18,738,136.35 = 6,106,439.70/x - Step 3: Cross multiply
12,492,090.90x = 18,738,136.35 × 6,106,439.70 - Step 4: Simplify right side
12,492,090.90x = 114,423,299,711,653.11 - Step 5: Solve for x
x = 114,423,299,711,653.11/12,492,090.90 - Step 6: Final answer
x = 9,159,659.55
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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.