Finding the Fourth Proportional to 2,990,597,108.70, 4,485,895,663.05 and 1,700,652,020.70
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Solution
The fourth proportional to 2,990,597,108.70, 4,485,895,663.05 and 1,700,652,020.70 is: 2,550,978,031.05
Step by Step Solution
- Step 1: Write the proportion equation
2,990,597,108.70 : 4,485,895,663.05 = 1,700,652,020.70 : x - Step 2: Convert to fraction form
2,990,597,108.70/4,485,895,663.05 = 1,700,652,020.70/x - Step 3: Cross multiply
2,990,597,108.70x = 4,485,895,663.05 × 1,700,652,020.70 - Step 4: Simplify right side
2,990,597,108.70x = 7,628,947,524,015,349,760 - Step 5: Solve for x
x = 7,628,947,524,015,349,760/2,990,597,108.70 - Step 6: Final answer
x = 2,550,978,031.05
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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.