Finding the Fourth Proportional to 2,083,996,923.70, 3,125,995,385.55 and 856,757,499.70
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Solution
The fourth proportional to 2,083,996,923.70, 3,125,995,385.55 and 856,757,499.70 is: 1,285,136,249.55
Step by Step Solution
- Step 1: Write the proportion equation
2,083,996,923.70 : 3,125,995,385.55 = 856,757,499.70 : x - Step 2: Convert to fraction form
2,083,996,923.70/3,125,995,385.55 = 856,757,499.70/x - Step 3: Cross multiply
2,083,996,923.70x = 3,125,995,385.55 × 856,757,499.70 - Step 4: Simplify right side
2,083,996,923.70x = 2,678,219,990,597,555,712 - Step 5: Solve for x
x = 2,678,219,990,597,555,712/2,083,996,923.70 - Step 6: Final answer
x = 1,285,136,249.55
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1.5x scale
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.