Finding the Fourth Proportional to 306,320,772.74, 422,725,364.26 and 167,092,153.70
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Solution
The fourth proportional to 306,320,772.74, 422,725,364.26 and 167,092,153.70 is: 230,588,643.74
Step by Step Solution
- Step 1: Write the proportion equation
306,320,772.74 : 422,725,364.26 = 167,092,153.70 : x - Step 2: Convert to fraction form
306,320,772.74/422,725,364.26 = 167,092,153.70/x - Step 3: Cross multiply
306,320,772.74x = 422,725,364.26 × 167,092,153.70 - Step 4: Simplify right side
306,320,772.74x = 70,634,091,535,289,048 - Step 5: Solve for x
x = 70,634,091,535,289,048/306,320,772.74 - Step 6: Final answer
x = 230,588,643.74
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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.