Finding the Fourth Proportional to 854,709,285.24, 1,274,877,849.29 and 776,244,678.80
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Solution
The fourth proportional to 854,709,285.24, 1,274,877,849.29 and 776,244,678.80 is: 1,157,840,640.92
Step by Step Solution
- Step 1: Write the proportion equation
854,709,285.24 : 1,274,877,849.29 = 776,244,678.80 : x - Step 2: Convert to fraction form
854,709,285.24/1,274,877,849.29 = 776,244,678.80/x - Step 3: Cross multiply
854,709,285.24x = 1,274,877,849.29 × 776,244,678.80 - Step 4: Simplify right side
854,709,285.24x = 989,617,146,621,095,296 - Step 5: Solve for x
x = 989,617,146,621,095,296/854,709,285.24 - Step 6: Final answer
x = 1,157,840,640.92
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.