Finding the Fourth Proportional to 8,938,981.49, 12,336,200.66 and 5,268,052.99
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Solution
The fourth proportional to 8,938,981.49, 12,336,200.66 and 5,268,052.99 is: 7,270,152.51
Step by Step Solution
- Step 1: Write the proportion equation
8,938,981.49 : 12,336,200.66 = 5,268,052.99 : x - Step 2: Convert to fraction form
8,938,981.49/12,336,200.66 = 5,268,052.99/x - Step 3: Cross multiply
8,938,981.49x = 12,336,200.66 × 5,268,052.99 - Step 4: Simplify right side
8,938,981.49x = 64,987,758,684,131.70 - Step 5: Solve for x
x = 64,987,758,684,131.70/8,938,981.49 - Step 6: Final answer
x = 7,270,152.51
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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.