Finding the Fourth Proportional to 306,460,230.10, 422,924,090.08 and 167,239,965.40
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Solution
The fourth proportional to 306,460,230.10, 422,924,090.08 and 167,239,965.40 is: 230,796,048.70
Step by Step Solution
- Step 1: Write the proportion equation
306,460,230.10 : 422,924,090.08 = 167,239,965.40 : x - Step 2: Convert to fraction form
306,460,230.10/422,924,090.08 = 167,239,965.40/x - Step 3: Cross multiply
306,460,230.10x = 422,924,090.08 × 167,239,965.40 - Step 4: Simplify right side
306,460,230.10x = 70,729,810,191,805,680 - Step 5: Solve for x
x = 70,729,810,191,805,680/306,460,230.10 - Step 6: Final answer
x = 230,796,048.70
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1.5x scale
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.