Finding the Fourth Proportional to 26,221,011.99, 36,191,975.15 and 15,489,231.17
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Solution
The fourth proportional to 26,221,011.99, 36,191,975.15 and 15,489,231.17 is: 21,379,261.39
Step by Step Solution
- Step 1: Write the proportion equation
26,221,011.99 : 36,191,975.15 = 15,489,231.17 : x - Step 2: Convert to fraction form
26,221,011.99/36,191,975.15 = 15,489,231.17/x - Step 3: Cross multiply
26,221,011.99x = 36,191,975.15 × 15,489,231.17 - Step 4: Simplify right side
26,221,011.99x = 560,585,869,338,839.44 - Step 5: Solve for x
x = 560,585,869,338,839.44/26,221,011.99 - Step 6: Final answer
x = 21,379,261.39
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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.