Finding the Fourth Proportional to 871,104,153.60, 1,202,150,949.12 and 499,894,087.68
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Solution
The fourth proportional to 871,104,153.60, 1,202,150,949.12 and 499,894,087.68 is: 689,869,459.90
Step by Step Solution
- Step 1: Write the proportion equation
871,104,153.60 : 1,202,150,949.12 = 499,894,087.68 : x - Step 2: Convert to fraction form
871,104,153.60/1,202,150,949.12 = 499,894,087.68/x - Step 3: Cross multiply
871,104,153.60x = 1,202,150,949.12 × 499,894,087.68 - Step 4: Simplify right side
871,104,153.60x = 600,948,151,963,988,480 - Step 5: Solve for x
x = 600,948,151,963,988,480/871,104,153.60 - Step 6: Final answer
x = 689,869,459.90
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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.