Finding the Fourth Proportional to 2,995,711,399.20, 4,484,808,212.40 and 2,135,748,007.20
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Solution
The fourth proportional to 2,995,711,399.20, 4,484,808,212.40 and 2,135,748,007.20 is: 3,197,377,492.66
Step by Step Solution
- Step 1: Write the proportion equation
2,995,711,399.20 : 4,484,808,212.40 = 2,135,748,007.20 : x - Step 2: Convert to fraction form
2,995,711,399.20/4,484,808,212.40 = 2,135,748,007.20/x - Step 3: Cross multiply
2,995,711,399.20x = 4,484,808,212.40 × 2,135,748,007.20 - Step 4: Simplify right side
2,995,711,399.20x = 9,578,420,202,307,493,888 - Step 5: Solve for x
x = 9,578,420,202,307,493,888/2,995,711,399.20 - Step 6: Final answer
x = 3,197,377,492.66
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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.