Finding the Fourth Proportional to 65,569,409.12, 90,483,983.59 and 36,200,207.99
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Solution
The fourth proportional to 65,569,409.12, 90,483,983.59 and 36,200,207.99 is: 49,955,292.71
Step by Step Solution
- Step 1: Write the proportion equation
65,569,409.12 : 90,483,983.59 = 36,200,207.99 : x - Step 2: Convert to fraction form
65,569,409.12/90,483,983.59 = 36,200,207.99/x - Step 3: Cross multiply
65,569,409.12x = 90,483,983.59 × 36,200,207.99 - Step 4: Simplify right side
65,569,409.12x = 3,275,539,025,857,456.50 - Step 5: Solve for x
x = 3,275,539,025,857,456.50/65,569,409.12 - Step 6: Final answer
x = 49,955,292.71
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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.