Finding the Fourth Proportional to 19,992,831.18, 29,985,817.53 and 6,342,935.10
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Solution
The fourth proportional to 19,992,831.18, 29,985,817.53 and 6,342,935.10 is: 9,513,314.69
Step by Step Solution
- Step 1: Write the proportion equation
19,992,831.18 : 29,985,817.53 = 6,342,935.10 : x - Step 2: Convert to fraction form
19,992,831.18/29,985,817.53 = 6,342,935.10/x - Step 3: Cross multiply
19,992,831.18x = 29,985,817.53 × 6,342,935.10 - Step 4: Simplify right side
19,992,831.18x = 190,198,094,513,232.31 - Step 5: Solve for x
x = 190,198,094,513,232.31/19,992,831.18 - Step 6: Final answer
x = 9,513,314.69
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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.