Finding the Fourth Proportional to 26,631,634.32, 36,751,642.92 and 15,031,630.80
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Solution
The fourth proportional to 26,631,634.32, 36,751,642.92 and 15,031,630.80 is: 20,743,643.48
Step by Step Solution
- Step 1: Write the proportion equation
26,631,634.32 : 36,751,642.92 = 15,031,630.80 : x - Step 2: Convert to fraction form
26,631,634.32/36,751,642.92 = 15,031,630.80/x - Step 3: Cross multiply
26,631,634.32x = 36,751,642.92 × 15,031,630.80 - Step 4: Simplify right side
26,631,634.32x = 552,437,127,666,874 - Step 5: Solve for x
x = 552,437,127,666,874/26,631,634.32 - Step 6: Final answer
x = 20,743,643.48
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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.