Finding the Fourth Proportional to 1,313,195,599.05, 1,812,207,803.34 and 718,482,480.18
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Solution
The fourth proportional to 1,313,195,599.05, 1,812,207,803.34 and 718,482,480.18 is: 991,504,660.91
Step by Step Solution
- Step 1: Write the proportion equation
1,313,195,599.05 : 1,812,207,803.34 = 718,482,480.18 : x - Step 2: Convert to fraction form
1,313,195,599.05/1,812,207,803.34 = 718,482,480.18/x - Step 3: Cross multiply
1,313,195,599.05x = 1,812,207,803.34 × 718,482,480.18 - Step 4: Simplify right side
1,313,195,599.05x = 1,302,039,557,141,207,296 - Step 5: Solve for x
x = 1,302,039,557,141,207,296/1,313,195,599.05 - Step 6: Final answer
x = 991,504,660.91
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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.