Finding the Fourth Proportional to 31,258,080, 43,136,283.24 and 18,214,287.12
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Solution
The fourth proportional to 31,258,080, 43,136,283.24 and 18,214,287.12 is: 25,135,793.63
Step by Step Solution
- Step 1: Write the proportion equation
31,258,080 : 43,136,283.24 = 18,214,287.12 : x - Step 2: Convert to fraction form
31,258,080/43,136,283.24 = 18,214,287.12/x - Step 3: Cross multiply
31,258,080x = 43,136,283.24 × 18,214,287.12 - Step 4: Simplify right side
31,258,080x = 785,696,648,223,004 - Step 5: Solve for x
x = 785,696,648,223,004/31,258,080 - Step 6: Final answer
x = 25,135,793.63
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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.