Finding the Fourth Proportional to 7,756,639.50, 11,636,219.97 and 2,292,288.78
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Solution
The fourth proportional to 7,756,639.50, 11,636,219.97 and 2,292,288.78 is: 3,438,805.75
Step by Step Solution
- Step 1: Write the proportion equation
7,756,639.50 : 11,636,219.97 = 2,292,288.78 : x - Step 2: Convert to fraction form
7,756,639.50/11,636,219.97 = 2,292,288.78/x - Step 3: Cross multiply
7,756,639.50x = 11,636,219.97 × 2,292,288.78 - Step 4: Simplify right side
7,756,639.50x = 26,673,576,478,842.94 - Step 5: Solve for x
x = 26,673,576,478,842.94/7,756,639.50 - Step 6: Final answer
x = 3,438,805.75
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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.