Finding the Fourth Proportional to 669,193,908.08, 923,447,109.84 and 371,825,982.32
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Solution
The fourth proportional to 669,193,908.08, 923,447,109.84 and 371,825,982.32 is: 513,097,361.75
Step by Step Solution
- Step 1: Write the proportion equation
669,193,908.08 : 923,447,109.84 = 371,825,982.32 : x - Step 2: Convert to fraction form
669,193,908.08/923,447,109.84 = 371,825,982.32/x - Step 3: Cross multiply
669,193,908.08x = 923,447,109.84 × 371,825,982.32 - Step 4: Simplify right side
669,193,908.08x = 343,361,628,736,822,912 - Step 5: Solve for x
x = 343,361,628,736,822,912/669,193,908.08 - Step 6: Final answer
x = 513,097,361.75
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1.5x scale
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.