Finding the Fourth Proportional to 1,386,436,851,939.10, 1,913,285,106,472 and 769,139,585,954.05
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Solution
The fourth proportional to 1,386,436,851,939.10, 1,913,285,106,472 and 769,139,585,954.05 is: 1,061,413,877,268.00
Step by Step Solution
- Step 1: Write the proportion equation
1,386,436,851,939.10 : 1,913,285,106,472 = 769,139,585,954.05 : x - Step 2: Convert to fraction form
1,386,436,851,939.10/1,913,285,106,472 = 769,139,585,954.05/x - Step 3: Cross multiply
1,386,436,851,939.10x = 1,913,285,106,472 × 769,139,585,954.05 - Step 4: Simplify right side
1,386,436,851,939.10x = 1,471,583,314,603,924,585,971,712 - Step 5: Solve for x
x = 1,471,583,314,603,924,585,971,712/1,386,436,851,939.10 - Step 6: Final answer
x = 1,061,413,877,268.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.