Finding the Fourth Proportional to 1,578,136,036.12, 2,178,135,771.42 and 951,706,452.76
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Solution
The fourth proportional to 1,578,136,036.12, 2,178,135,771.42 and 951,706,452.76 is: 1,313,540,671.53
Step by Step Solution
- Step 1: Write the proportion equation
1,578,136,036.12 : 2,178,135,771.42 = 951,706,452.76 : x - Step 2: Convert to fraction form
1,578,136,036.12/2,178,135,771.42 = 951,706,452.76/x - Step 3: Cross multiply
1,578,136,036.12x = 2,178,135,771.42 × 951,706,452.76 - Step 4: Simplify right side
1,578,136,036.12x = 2,072,945,868,647,794,432 - Step 5: Solve for x
x = 2,072,945,868,647,794,432/1,578,136,036.12 - Step 6: Final answer
x = 1,313,540,671.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.