Finding the Fourth Proportional to 167,872,542.30, 251,808,813.45 and 99,680,132.70
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Solution
The fourth proportional to 167,872,542.30, 251,808,813.45 and 99,680,132.70 is: 149,520,199.05
Step by Step Solution
- Step 1: Write the proportion equation
167,872,542.30 : 251,808,813.45 = 99,680,132.70 : x - Step 2: Convert to fraction form
167,872,542.30/251,808,813.45 = 99,680,132.70/x - Step 3: Cross multiply
167,872,542.30x = 251,808,813.45 × 99,680,132.70 - Step 4: Simplify right side
167,872,542.30x = 25,100,335,939,725,544 - Step 5: Solve for x
x = 25,100,335,939,725,544/167,872,542.30 - Step 6: Final answer
x = 149,520,199.05
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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.