Finding the Fourth Proportional to 306,467,057.60, 422,933,529.12 and 167,246,809.28
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Solution
The fourth proportional to 306,467,057.60, 422,933,529.12 and 167,246,809.28 is: 230,805,502.68
Step by Step Solution
- Step 1: Write the proportion equation
306,467,057.60 : 422,933,529.12 = 167,246,809.28 : x - Step 2: Convert to fraction form
306,467,057.60/422,933,529.12 = 167,246,809.28/x - Step 3: Cross multiply
306,467,057.60x = 422,933,529.12 × 167,246,809.28 - Step 4: Simplify right side
306,467,057.60x = 70,734,283,282,849,968 - Step 5: Solve for x
x = 70,734,283,282,849,968/306,467,057.60 - Step 6: Final answer
x = 230,805,502.68
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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.