Finding the Fourth Proportional to 25,995,855.30, 38,931,890.99 and 15,042,955.55
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Solution
The fourth proportional to 25,995,855.30, 38,931,890.99 and 15,042,955.55 is: 22,528,618.45
Step by Step Solution
- Step 1: Write the proportion equation
25,995,855.30 : 38,931,890.99 = 15,042,955.55 : x - Step 2: Convert to fraction form
25,995,855.30/38,931,890.99 = 15,042,955.55/x - Step 3: Cross multiply
25,995,855.30x = 38,931,890.99 × 15,042,955.55 - Step 4: Simplify right side
25,995,855.30x = 585,650,705,370,141.25 - Step 5: Solve for x
x = 585,650,705,370,141.25/25,995,855.30 - Step 6: Final answer
x = 22,528,618.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.