Finding the Fourth Proportional to 827,135,999.60, 1,240,703,999.40 and 746,514,431.60
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Solution
The fourth proportional to 827,135,999.60, 1,240,703,999.40 and 746,514,431.60 is: 1,119,771,647.40
Step by Step Solution
- Step 1: Write the proportion equation
827,135,999.60 : 1,240,703,999.40 = 746,514,431.60 : x - Step 2: Convert to fraction form
827,135,999.60/1,240,703,999.40 = 746,514,431.60/x - Step 3: Cross multiply
827,135,999.60x = 1,240,703,999.40 × 746,514,431.60 - Step 4: Simplify right side
827,135,999.60x = 926,203,440,895,937,792 - Step 5: Solve for x
x = 926,203,440,895,937,792/827,135,999.60 - Step 6: Final answer
x = 1,119,771,647.40
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.