Finding the Fourth Proportional to 38,862,132.40, 58,301,071.80 and 13,305,725.20
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Solution
The fourth proportional to 38,862,132.40, 58,301,071.80 and 13,305,725.20 is: 19,961,283.45
Step by Step Solution
- Step 1: Write the proportion equation
38,862,132.40 : 58,301,071.80 = 13,305,725.20 : x - Step 2: Convert to fraction form
38,862,132.40/58,301,071.80 = 13,305,725.20/x - Step 3: Cross multiply
38,862,132.40x = 58,301,071.80 × 13,305,725.20 - Step 4: Simplify right side
38,862,132.40x = 775,738,040,236,269.25 - Step 5: Solve for x
x = 775,738,040,236,269.25/38,862,132.40 - Step 6: Final answer
x = 19,961,283.45
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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.