Finding the Fourth Proportional to 288,698,947.29, 398,412,381.11 and 163,269,899.76
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Solution
The fourth proportional to 288,698,947.29, 398,412,381.11 and 163,269,899.76 is: 225,316,891.99
Step by Step Solution
- Step 1: Write the proportion equation
288,698,947.29 : 398,412,381.11 = 163,269,899.76 : x - Step 2: Convert to fraction form
288,698,947.29/398,412,381.11 = 163,269,899.76/x - Step 3: Cross multiply
288,698,947.29x = 398,412,381.11 × 163,269,899.76 - Step 4: Simplify right side
288,698,947.29x = 65,048,749,524,164,208 - Step 5: Solve for x
x = 65,048,749,524,164,208/288,698,947.29 - Step 6: Final answer
x = 225,316,891.99
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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.