Finding the Fourth Proportional to 564,120,520.98, 778,448,382.08 and 313,211,945.99
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Solution
The fourth proportional to 564,120,520.98, 778,448,382.08 and 313,211,945.99 is: 432,211,422.08
Step by Step Solution
- Step 1: Write the proportion equation
564,120,520.98 : 778,448,382.08 = 313,211,945.99 : x - Step 2: Convert to fraction form
564,120,520.98/778,448,382.08 = 313,211,945.99/x - Step 3: Cross multiply
564,120,520.98x = 778,448,382.08 × 313,211,945.99 - Step 4: Simplify right side
564,120,520.98x = 243,819,332,598,585,568 - Step 5: Solve for x
x = 243,819,332,598,585,568/564,120,520.98 - Step 6: Final answer
x = 432,211,422.08
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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.