Finding the Fourth Proportional to 1,618,337,639.94, 2,426,523,457.68 and 634,585,630.20
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Solution
The fourth proportional to 1,618,337,639.94, 2,426,523,457.68 and 634,585,630.20 is: 951,492,988.60
Step by Step Solution
- Step 1: Write the proportion equation
1,618,337,639.94 : 2,426,523,457.68 = 634,585,630.20 : x - Step 2: Convert to fraction form
1,618,337,639.94/2,426,523,457.68 = 634,585,630.20/x - Step 3: Cross multiply
1,618,337,639.94x = 2,426,523,457.68 × 634,585,630.20 - Step 4: Simplify right side
1,618,337,639.94x = 1,539,836,917,586,945,792 - Step 5: Solve for x
x = 1,539,836,917,586,945,792/1,618,337,639.94 - Step 6: Final answer
x = 951,492,988.60
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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.