Finding the Fourth Proportional to 1,436,579,552.75, 1,982,478,905.94 and 776,529,830.75
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Solution
The fourth proportional to 1,436,579,552.75, 1,982,478,905.94 and 776,529,830.75 is: 1,071,610,692.46
Step by Step Solution
- Step 1: Write the proportion equation
1,436,579,552.75 : 1,982,478,905.94 = 776,529,830.75 : x - Step 2: Convert to fraction form
1,436,579,552.75/1,982,478,905.94 = 776,529,830.75/x - Step 3: Cross multiply
1,436,579,552.75x = 1,982,478,905.94 × 776,529,830.75 - Step 4: Simplify right side
1,436,579,552.75x = 1,539,454,009,285,121,024 - Step 5: Solve for x
x = 1,539,454,009,285,121,024/1,436,579,552.75 - Step 6: Final answer
x = 1,071,610,692.46
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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.