Finding the Fourth Proportional to 19,715,932.09, 27,169,229.14 and 15,074,975.53
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Solution
The fourth proportional to 19,715,932.09, 27,169,229.14 and 15,074,975.53 is: 20,773,832.18
Step by Step Solution
- Step 1: Write the proportion equation
19,715,932.09 : 27,169,229.14 = 15,074,975.53 : x - Step 2: Convert to fraction form
19,715,932.09/27,169,229.14 = 15,074,975.53/x - Step 3: Cross multiply
19,715,932.09x = 27,169,229.14 × 15,074,975.53 - Step 4: Simplify right side
19,715,932.09x = 409,575,464,454,462.94 - Step 5: Solve for x
x = 409,575,464,454,462.94/19,715,932.09 - Step 6: Final answer
x = 20,773,832.18
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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.