Finding the Fourth Proportional to 10,368,319.20, 15,552,478.80 and 4,688,728.80
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Solution
The fourth proportional to 10,368,319.20, 15,552,478.80 and 4,688,728.80 is: 7,033,093.20
Step by Step Solution
- Step 1: Write the proportion equation
10,368,319.20 : 15,552,478.80 = 4,688,728.80 : x - Step 2: Convert to fraction form
10,368,319.20/15,552,478.80 = 4,688,728.80/x - Step 3: Cross multiply
10,368,319.20x = 15,552,478.80 × 4,688,728.80 - Step 4: Simplify right side
10,368,319.20x = 72,921,355,260,949.44 - Step 5: Solve for x
x = 72,921,355,260,949.44/10,368,319.20 - Step 6: Final answer
x = 7,033,093.20
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Similar ratio
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1.5x scale
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.