Finding the Fourth Proportional to 1,761,463,419.40, 2,642,195,129.10 and 1,180,988,129.80
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Solution
The fourth proportional to 1,761,463,419.40, 2,642,195,129.10 and 1,180,988,129.80 is: 1,771,482,194.70
Step by Step Solution
- Step 1: Write the proportion equation
1,761,463,419.40 : 2,642,195,129.10 = 1,180,988,129.80 : x - Step 2: Convert to fraction form
1,761,463,419.40/2,642,195,129.10 = 1,180,988,129.80/x - Step 3: Cross multiply
1,761,463,419.40x = 2,642,195,129.10 × 1,180,988,129.80 - Step 4: Simplify right side
1,761,463,419.40x = 3,120,401,084,082,478,080 - Step 5: Solve for x
x = 3,120,401,084,082,478,080/1,761,463,419.40 - Step 6: Final answer
x = 1,771,482,194.70
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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.