Finding the Fourth Proportional to 1,235,165,463.14, 1,704,557,956.46 and 670,674,137.09
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Solution
The fourth proportional to 1,235,165,463.14, 1,704,557,956.46 and 670,674,137.09 is: 925,546,390.89
Step by Step Solution
- Step 1: Write the proportion equation
1,235,165,463.14 : 1,704,557,956.46 = 670,674,137.09 : x - Step 2: Convert to fraction form
1,235,165,463.14/1,704,557,956.46 = 670,674,137.09/x - Step 3: Cross multiply
1,235,165,463.14x = 1,704,557,956.46 × 670,674,137.09 - Step 4: Simplify right side
1,235,165,463.14x = 1,143,202,936,556,828,160 - Step 5: Solve for x
x = 1,143,202,936,556,828,160/1,235,165,463.14 - Step 6: Final answer
x = 925,546,390.89
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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.