Finding the Fourth Proportional to 13,642,972.33, 18,827,257.71 and 7,448,095.62
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Solution
The fourth proportional to 13,642,972.33, 18,827,257.71 and 7,448,095.62 is: 10,278,347.88
Step by Step Solution
- Step 1: Write the proportion equation
13,642,972.33 : 18,827,257.71 = 7,448,095.62 : x - Step 2: Convert to fraction form
13,642,972.33/18,827,257.71 = 7,448,095.62/x - Step 3: Cross multiply
13,642,972.33x = 18,827,257.71 × 7,448,095.62 - Step 4: Simplify right side
13,642,972.33x = 140,227,215,686,462.23 - Step 5: Solve for x
x = 140,227,215,686,462.23/13,642,972.33 - Step 6: Final answer
x = 10,278,347.88
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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.