Finding the Fourth Proportional to 1,229,541,412.20, 1,843,674,389.10 and 452,787,246.60
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Solution
The fourth proportional to 1,229,541,412.20, 1,843,674,389.10 and 452,787,246.60 is: 678,946,021.65
Step by Step Solution
- Step 1: Write the proportion equation
1,229,541,412.20 : 1,843,674,389.10 = 452,787,246.60 : x - Step 2: Convert to fraction form
1,229,541,412.20/1,843,674,389.10 = 452,787,246.60/x - Step 3: Cross multiply
1,229,541,412.20x = 1,843,674,389.10 × 452,787,246.60 - Step 4: Simplify right side
1,229,541,412.20x = 834,792,250,267,526,016 - Step 5: Solve for x
x = 834,792,250,267,526,016/1,229,541,412.20 - Step 6: Final answer
x = 678,946,021.65
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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.