Finding the Fourth Proportional to 272,623,856.80, 408,935,785.20 and 229,577,135.80
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Solution
The fourth proportional to 272,623,856.80, 408,935,785.20 and 229,577,135.80 is: 344,365,703.70
Step by Step Solution
- Step 1: Write the proportion equation
272,623,856.80 : 408,935,785.20 = 229,577,135.80 : x - Step 2: Convert to fraction form
272,623,856.80/408,935,785.20 = 229,577,135.80/x - Step 3: Cross multiply
272,623,856.80x = 408,935,785.20 × 229,577,135.80 - Step 4: Simplify right side
272,623,856.80x = 93,882,306,292,340,032 - Step 5: Solve for x
x = 93,882,306,292,340,032/272,623,856.80 - Step 6: Final answer
x = 344,365,703.70
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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.