Finding the Fourth Proportional to 1,292,912,382.80, 1,939,368,599.94 and 310,338,922.16
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Solution
The fourth proportional to 1,292,912,382.80, 1,939,368,599.94 and 310,338,922.16 is: 465,508,389.42
Step by Step Solution
- Step 1: Write the proportion equation
1,292,912,382.80 : 1,939,368,599.94 = 310,338,922.16 : x - Step 2: Convert to fraction form
1,292,912,382.80/1,939,368,599.94 = 310,338,922.16/x - Step 3: Cross multiply
1,292,912,382.80x = 1,939,368,599.94 × 310,338,922.16 - Step 4: Simplify right side
1,292,912,382.80x = 601,861,560,976,327,936 - Step 5: Solve for x
x = 601,861,560,976,327,936/1,292,912,382.80 - Step 6: Final answer
x = 465,508,389.42
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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.