Finding the Fourth Proportional to 1,861,072,661.40, 2,791,608,992.10 and 1,657,676,904.68
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Solution
The fourth proportional to 1,861,072,661.40, 2,791,608,992.10 and 1,657,676,904.68 is: 2,486,515,357.01
Step by Step Solution
- Step 1: Write the proportion equation
1,861,072,661.40 : 2,791,608,992.10 = 1,657,676,904.68 : x - Step 2: Convert to fraction form
1,861,072,661.40/2,791,608,992.10 = 1,657,676,904.68/x - Step 3: Cross multiply
1,861,072,661.40x = 2,791,608,992.10 × 1,657,676,904.68 - Step 4: Simplify right side
1,861,072,661.40x = 4,627,585,753,087,223,808 - Step 5: Solve for x
x = 4,627,585,753,087,223,808/1,861,072,661.40 - Step 6: Final answer
x = 2,486,515,357.01
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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.