Finding the Fourth Proportional to 18,722,535.60, 28,086,913.80 and 7,363,354.80
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Solution
The fourth proportional to 18,722,535.60, 28,086,913.80 and 7,363,354.80 is: 11,046,255.48
Step by Step Solution
- Step 1: Write the proportion equation
18,722,535.60 : 28,086,913.80 = 7,363,354.80 : x - Step 2: Convert to fraction form
18,722,535.60/28,086,913.80 = 7,363,354.80/x - Step 3: Cross multiply
18,722,535.60x = 28,086,913.80 × 7,363,354.80 - Step 4: Simplify right side
18,722,535.60x = 206,813,911,546,416.25 - Step 5: Solve for x
x = 206,813,911,546,416.25/18,722,535.60 - Step 6: Final answer
x = 11,046,255.48
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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.