Finding the Fourth Proportional to 216,720,821.99, 299,073,217.46 and 117,599,048.66
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Solution
The fourth proportional to 216,720,821.99, 299,073,217.46 and 117,599,048.66 is: 162,285,864.04
Step by Step Solution
- Step 1: Write the proportion equation
216,720,821.99 : 299,073,217.46 = 117,599,048.66 : x - Step 2: Convert to fraction form
216,720,821.99/299,073,217.46 = 117,599,048.66/x - Step 3: Cross multiply
216,720,821.99x = 299,073,217.46 × 117,599,048.66 - Step 4: Simplify right side
216,720,821.99x = 35,170,725,850,897,940 - Step 5: Solve for x
x = 35,170,725,850,897,940/216,720,821.99 - Step 6: Final answer
x = 162,285,864.04
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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.