Finding the Fourth Proportional to 19,581,952.16, 29,362,791.20 and 8,789,960.09
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Solution
The fourth proportional to 19,581,952.16, 29,362,791.20 and 8,789,960.09 is: 13,180,389.81
Step by Step Solution
- Step 1: Write the proportion equation
19,581,952.16 : 29,362,791.20 = 8,789,960.09 : x - Step 2: Convert to fraction form
19,581,952.16/29,362,791.20 = 8,789,960.09/x - Step 3: Cross multiply
19,581,952.16x = 29,362,791.20 × 8,789,960.09 - Step 4: Simplify right side
19,581,952.16x = 258,097,762,808,460.38 - Step 5: Solve for x
x = 258,097,762,808,460.38/19,581,952.16 - Step 6: Final answer
x = 13,180,389.81
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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.