Finding the Fourth Proportional to 1,545,904,615.80, 2,318,062,605.30 and 455,245,966.20
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Solution
The fourth proportional to 1,545,904,615.80, 2,318,062,605.30 and 455,245,966.20 is: 682,635,034.32
Step by Step Solution
- Step 1: Write the proportion equation
1,545,904,615.80 : 2,318,062,605.30 = 455,245,966.20 : x - Step 2: Convert to fraction form
1,545,904,615.80/2,318,062,605.30 = 455,245,966.20/x - Step 3: Cross multiply
1,545,904,615.80x = 2,318,062,605.30 × 455,245,966.20 - Step 4: Simplify right side
1,545,904,615.80x = 1,055,288,650,461,887,744 - Step 5: Solve for x
x = 1,055,288,650,461,887,744/1,545,904,615.80 - Step 6: Final answer
x = 682,635,034.32
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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.