Finding the Fourth Proportional to 1,340,664,454.62, 1,850,087,934.45 and 776,173,138.02
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Solution
The fourth proportional to 1,340,664,454.62, 1,850,087,934.45 and 776,173,138.02 is: 1,071,102,133.53
Step by Step Solution
- Step 1: Write the proportion equation
1,340,664,454.62 : 1,850,087,934.45 = 776,173,138.02 : x - Step 2: Convert to fraction form
1,340,664,454.62/1,850,087,934.45 = 776,173,138.02/x - Step 3: Cross multiply
1,340,664,454.62x = 1,850,087,934.45 × 776,173,138.02 - Step 4: Simplify right side
1,340,664,454.62x = 1,435,988,557,694,996,480 - Step 5: Solve for x
x = 1,435,988,557,694,996,480/1,340,664,454.62 - Step 6: Final answer
x = 1,071,102,133.53
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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.