Finding the Fourth Proportional to 26,221,010.49, 36,191,973.08 and 15,489,229.67
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Solution
The fourth proportional to 26,221,010.49, 36,191,973.08 and 15,489,229.67 is: 21,379,259.32
Step by Step Solution
- Step 1: Write the proportion equation
26,221,010.49 : 36,191,973.08 = 15,489,229.67 : x - Step 2: Convert to fraction form
26,221,010.49/36,191,973.08 = 15,489,229.67/x - Step 3: Cross multiply
26,221,010.49x = 36,191,973.08 × 15,489,229.67 - Step 4: Simplify right side
26,221,010.49x = 560,585,782,988,171.31 - Step 5: Solve for x
x = 560,585,782,988,171.31/26,221,010.49 - Step 6: Final answer
x = 21,379,259.32
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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.