Finding the Fourth Proportional to 39,387,292.08, 54,357,201.84 and 21,987,034.08
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Solution
The fourth proportional to 39,387,292.08, 54,357,201.84 and 21,987,034.08 is: 30,343,635.88
Step by Step Solution
- Step 1: Write the proportion equation
39,387,292.08 : 54,357,201.84 = 21,987,034.08 : x - Step 2: Convert to fraction form
39,387,292.08/54,357,201.84 = 21,987,034.08/x - Step 3: Cross multiply
39,387,292.08x = 54,357,201.84 × 21,987,034.08 - Step 4: Simplify right side
39,387,292.08x = 1,195,153,649,349,518.75 - Step 5: Solve for x
x = 1,195,153,649,349,518.75/39,387,292.08 - Step 6: Final answer
x = 30,343,635.88
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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.