Finding the Fourth Proportional to 9,770,988.99, 13,485,581.92 and 5,421,476.56
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Solution
The fourth proportional to 9,770,988.99, 13,485,581.92 and 5,421,476.56 is: 7,482,534.91
Step by Step Solution
- Step 1: Write the proportion equation
9,770,988.99 : 13,485,581.92 = 5,421,476.56 : x - Step 2: Convert to fraction form
9,770,988.99/13,485,581.92 = 5,421,476.56/x - Step 3: Cross multiply
9,770,988.99x = 13,485,581.92 × 5,421,476.56 - Step 4: Simplify right side
9,770,988.99x = 73,111,766,245,092.34 - Step 5: Solve for x
x = 73,111,766,245,092.34/9,770,988.99 - Step 6: Final answer
x = 7,482,534.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.