Finding the Fourth Proportional to 909,786,161.26, 1,364,683,239.87 and 288,004,447.81
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Solution
The fourth proportional to 909,786,161.26, 1,364,683,239.87 and 288,004,447.81 is: 432,007,937.33
Step by Step Solution
- Step 1: Write the proportion equation
909,786,161.26 : 1,364,683,239.87 = 288,004,447.81 : x - Step 2: Convert to fraction form
909,786,161.26/1,364,683,239.87 = 288,004,447.81/x - Step 3: Cross multiply
909,786,161.26x = 1,364,683,239.87 × 288,004,447.81 - Step 4: Simplify right side
909,786,161.26x = 393,034,842,934,321,088 - Step 5: Solve for x
x = 393,034,842,934,321,088/909,786,161.26 - Step 6: Final answer
x = 432,007,937.33
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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.