Finding the Fourth Proportional to 5,291,997,931.20, 7,939,192,787.64 and 1,750,731,060.72
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Solution
The fourth proportional to 5,291,997,931.20, 7,939,192,787.64 and 1,750,731,060.72 is: 2,626,492,222.99
Step by Step Solution
- Step 1: Write the proportion equation
5,291,997,931.20 : 7,939,192,787.64 = 1,750,731,060.72 : x - Step 2: Convert to fraction form
5,291,997,931.20/7,939,192,787.64 = 1,750,731,060.72/x - Step 3: Cross multiply
5,291,997,931.20x = 7,939,192,787.64 × 1,750,731,060.72 - Step 4: Simplify right side
5,291,997,931.20x = 13,899,391,410,365,552,640 - Step 5: Solve for x
x = 13,899,391,410,365,552,640/5,291,997,931.20 - Step 6: Final answer
x = 2,626,492,222.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.