Finding the Fourth Proportional to 28,585,389.24, 39,447,751.28 and 15,532,687.98
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Solution
The fourth proportional to 28,585,389.24, 39,447,751.28 and 15,532,687.98 is: 21,435,062.75
Step by Step Solution
- Step 1: Write the proportion equation
28,585,389.24 : 39,447,751.28 = 15,532,687.98 : x - Step 2: Convert to fraction form
28,585,389.24/39,447,751.28 = 15,532,687.98/x - Step 3: Cross multiply
28,585,389.24x = 39,447,751.28 × 15,532,687.98 - Step 4: Simplify right side
28,585,389.24x = 612,729,612,067,222.12 - Step 5: Solve for x
x = 612,729,612,067,222.12/28,585,389.24 - Step 6: Final answer
x = 21,435,062.75
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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.