Finding the Fourth Proportional to 702,666,472.80, 969,690,337.16 and 385,124,178.09
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Solution
The fourth proportional to 702,666,472.80, 969,690,337.16 and 385,124,178.09 is: 531,477,178.09
Step by Step Solution
- Step 1: Write the proportion equation
702,666,472.80 : 969,690,337.16 = 385,124,178.09 : x - Step 2: Convert to fraction form
702,666,472.80/969,690,337.16 = 385,124,178.09/x - Step 3: Cross multiply
702,666,472.80x = 969,690,337.16 × 385,124,178.09 - Step 4: Simplify right side
702,666,472.80x = 373,451,194,100,559,936 - Step 5: Solve for x
x = 373,451,194,100,559,936/702,666,472.80 - Step 6: Final answer
x = 531,477,178.09
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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.