Finding the Fourth Proportional to 13,618,586.98, 18,793,497.02 and 7,423,498.05
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Solution
The fourth proportional to 13,618,586.98, 18,793,497.02 and 7,423,498.05 is: 10,244,343.90
Step by Step Solution
- Step 1: Write the proportion equation
13,618,586.98 : 18,793,497.02 = 7,423,498.05 : x - Step 2: Convert to fraction form
13,618,586.98/18,793,497.02 = 7,423,498.05/x - Step 3: Cross multiply
13,618,586.98x = 18,793,497.02 × 7,423,498.05 - Step 4: Simplify right side
13,618,586.98x = 139,513,488,480,650.80 - Step 5: Solve for x
x = 139,513,488,480,650.80/13,618,586.98 - Step 6: Final answer
x = 10,244,343.90
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1.5x scale
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.