Finding the Fourth Proportional to 1,990,566,401,088.10, 2,985,984,442,175.40 and 699,620,706,486.96
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Solution
The fourth proportional to 1,990,566,401,088.10, 2,985,984,442,175.40 and 699,620,706,486.96 is: 1,049,478,451,887.81
Step by Step Solution
- Step 1: Write the proportion equation
1,990,566,401,088.10 : 2,985,984,442,175.40 = 699,620,706,486.96 : x - Step 2: Convert to fraction form
1,990,566,401,088.10/2,985,984,442,175.40 = 699,620,706,486.96/x - Step 3: Cross multiply
1,990,566,401,088.10x = 2,985,984,442,175.40 × 699,620,706,486.96 - Step 4: Simplify right side
1,990,566,401,088.10x = 2,089,056,544,993,824,372,424,704 - Step 5: Solve for x
x = 2,089,056,544,993,824,372,424,704/1,990,566,401,088.10 - Step 6: Final answer
x = 1,049,478,451,887.81
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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.