Finding the Fourth Proportional to 288,734,739.20, 433,102,108.80 and 220,710,291.20
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Solution
The fourth proportional to 288,734,739.20, 433,102,108.80 and 220,710,291.20 is: 331,065,436.80
Step by Step Solution
- Step 1: Write the proportion equation
288,734,739.20 : 433,102,108.80 = 220,710,291.20 : x - Step 2: Convert to fraction form
288,734,739.20/433,102,108.80 = 220,710,291.20/x - Step 3: Cross multiply
288,734,739.20x = 433,102,108.80 × 220,710,291.20 - Step 4: Simplify right side
288,734,739.20x = 95,590,092,552,582,080 - Step 5: Solve for x
x = 95,590,092,552,582,080/288,734,739.20 - Step 6: Final answer
x = 331,065,436.80
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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.