Finding the Fourth Proportional to 19,128,010.68, 28,675,028.19 and 7,453,679.13
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Solution
The fourth proportional to 19,128,010.68, 28,675,028.19 and 7,453,679.13 is: 11,173,898.99
Step by Step Solution
- Step 1: Write the proportion equation
19,128,010.68 : 28,675,028.19 = 7,453,679.13 : x - Step 2: Convert to fraction form
19,128,010.68/28,675,028.19 = 7,453,679.13/x - Step 3: Cross multiply
19,128,010.68x = 28,675,028.19 × 7,453,679.13 - Step 4: Simplify right side
19,128,010.68x = 213,734,459,199,915.97 - Step 5: Solve for x
x = 213,734,459,199,915.97/19,128,010.68 - Step 6: Final answer
x = 11,173,898.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.