Finding the Fourth Proportional to 1,869,692,620, 2,580,251,787.12 and 1,034,302,787.68
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Solution
The fourth proportional to 1,869,692,620, 2,580,251,787.12 and 1,034,302,787.68 is: 1,427,379,873.99
Step by Step Solution
- Step 1: Write the proportion equation
1,869,692,620 : 2,580,251,787.12 = 1,034,302,787.68 : x - Step 2: Convert to fraction form
1,869,692,620/2,580,251,787.12 = 1,034,302,787.68/x - Step 3: Cross multiply
1,869,692,620x = 2,580,251,787.12 × 1,034,302,787.68 - Step 4: Simplify right side
1,869,692,620x = 2,668,761,616,334,517,760 - Step 5: Solve for x
x = 2,668,761,616,334,517,760/1,869,692,620 - Step 6: Final answer
x = 1,427,379,873.99
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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.