Finding the Fourth Proportional to 309,915,735.21, 427,703,057.33 and 170,686,460.07
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Solution
The fourth proportional to 309,915,735.21, 427,703,057.33 and 170,686,460.07 is: 235,557,967.93
Step by Step Solution
- Step 1: Write the proportion equation
309,915,735.21 : 427,703,057.33 = 170,686,460.07 : x - Step 2: Convert to fraction form
309,915,735.21/427,703,057.33 = 170,686,460.07/x - Step 3: Cross multiply
309,915,735.21x = 427,703,057.33 × 170,686,460.07 - Step 4: Simplify right side
309,915,735.21x = 73,003,120,815,920,528 - Step 5: Solve for x
x = 73,003,120,815,920,528/309,915,735.21 - Step 6: Final answer
x = 235,557,967.93
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.