Finding the Fourth Proportional to 7,869,825,912.51, 11,806,809,370.92 and 2,828,191,707.32
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Solution
The fourth proportional to 7,869,825,912.51, 11,806,809,370.92 and 2,828,191,707.32 is: 4,243,031,640.59
Step by Step Solution
- Step 1: Write the proportion equation
7,869,825,912.51 : 11,806,809,370.92 = 2,828,191,707.32 : x - Step 2: Convert to fraction form
7,869,825,912.51/11,806,809,370.92 = 2,828,191,707.32/x - Step 3: Cross multiply
7,869,825,912.51x = 11,806,809,370.92 × 2,828,191,707.32 - Step 4: Simplify right side
7,869,825,912.51x = 33,391,920,352,684,978,176 - Step 5: Solve for x
x = 33,391,920,352,684,978,176/7,869,825,912.51 - Step 6: Final answer
x = 4,243,031,640.59
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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.