Finding the Fourth Proportional to 39,343,024.95, 54,293,611.06 and 21,940,469.99
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Solution
The fourth proportional to 39,343,024.95, 54,293,611.06 and 21,940,469.99 is: 30,277,980.55
Step by Step Solution
- Step 1: Write the proportion equation
39,343,024.95 : 54,293,611.06 = 21,940,469.99 : x - Step 2: Convert to fraction form
39,343,024.95/54,293,611.06 = 21,940,469.99/x - Step 3: Cross multiply
39,343,024.95x = 54,293,611.06 × 21,940,469.99 - Step 4: Simplify right side
39,343,024.95x = 1,191,227,344,110,662 - Step 5: Solve for x
x = 1,191,227,344,110,662/39,343,024.95 - Step 6: Final answer
x = 30,277,980.55
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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.