Finding the Fourth Proportional to 452,355,311.40, 678,144,350.16 and 157,212,084.84
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Solution
The fourth proportional to 452,355,311.40, 678,144,350.16 and 157,212,084.84 is: 235,683,066.88
Step by Step Solution
- Step 1: Write the proportion equation
452,355,311.40 : 678,144,350.16 = 157,212,084.84 : x - Step 2: Convert to fraction form
452,355,311.40/678,144,350.16 = 157,212,084.84/x - Step 3: Cross multiply
452,355,311.40x = 678,144,350.16 × 157,212,084.84 - Step 4: Simplify right side
452,355,311.40x = 106,612,487,111,120,592 - Step 5: Solve for x
x = 106,612,487,111,120,592/452,355,311.40 - Step 6: Final answer
x = 235,683,066.88
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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.