Finding the Fourth Proportional to 39,026,442.08, 53,854,240.20 and 21,621,749.36
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Solution
The fourth proportional to 39,026,442.08, 53,854,240.20 and 21,621,749.36 is: 29,836,767.63
Step by Step Solution
- Step 1: Write the proportion equation
39,026,442.08 : 53,854,240.20 = 21,621,749.36 : x - Step 2: Convert to fraction form
39,026,442.08/53,854,240.20 = 21,621,749.36/x - Step 3: Cross multiply
39,026,442.08x = 53,854,240.20 × 21,621,749.36 - Step 4: Simplify right side
39,026,442.08x = 1,164,422,883,577,636.25 - Step 5: Solve for x
x = 1,164,422,883,577,636.25/39,026,442.08 - Step 6: Final answer
x = 29,836,767.63
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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.