Finding the Fourth Proportional to 10,471,763.70, 15,707,645.55 and 7,070,541.30
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Solution
The fourth proportional to 10,471,763.70, 15,707,645.55 and 7,070,541.30 is: 10,605,811.95
Step by Step Solution
- Step 1: Write the proportion equation
10,471,763.70 : 15,707,645.55 = 7,070,541.30 : x - Step 2: Convert to fraction form
10,471,763.70/15,707,645.55 = 7,070,541.30/x - Step 3: Cross multiply
10,471,763.70x = 15,707,645.55 × 7,070,541.30 - Step 4: Simplify right side
10,471,763.70x = 111,061,556,587,036.22 - Step 5: Solve for x
x = 111,061,556,587,036.22/10,471,763.70 - Step 6: Final answer
x = 10,605,811.95
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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.