Finding the Fourth Proportional to 21,557,832.47, 29,674,297.63 and 18,799,653.68
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Solution
The fourth proportional to 21,557,832.47, 29,674,297.63 and 18,799,653.68 is: 25,877,672.04
Step by Step Solution
- Step 1: Write the proportion equation
21,557,832.47 : 29,674,297.63 = 18,799,653.68 : x - Step 2: Convert to fraction form
21,557,832.47/29,674,297.63 = 18,799,653.68/x - Step 3: Cross multiply
21,557,832.47x = 29,674,297.63 × 18,799,653.68 - Step 4: Simplify right side
21,557,832.47x = 557,866,518,668,431.44 - Step 5: Solve for x
x = 557,866,518,668,431.44/21,557,832.47 - Step 6: Final answer
x = 25,877,672.04
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.