Finding the Fourth Proportional to 172,459,697.80, 258,689,546.70 and 149,784,881.80
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Solution
The fourth proportional to 172,459,697.80, 258,689,546.70 and 149,784,881.80 is: 224,677,322.70
Step by Step Solution
- Step 1: Write the proportion equation
172,459,697.80 : 258,689,546.70 = 149,784,881.80 : x - Step 2: Convert to fraction form
172,459,697.80/258,689,546.70 = 149,784,881.80/x - Step 3: Cross multiply
172,459,697.80x = 258,689,546.70 × 149,784,881.80 - Step 4: Simplify right side
172,459,697.80x = 38,747,783,175,355,080 - Step 5: Solve for x
x = 38,747,783,175,355,080/172,459,697.80 - Step 6: Final answer
x = 224,677,322.70
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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.