Finding the Fourth Proportional to 395,862,789.84, 593,882,467.56 and 129,980,347.95
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Solution
The fourth proportional to 395,862,789.84, 593,882,467.56 and 129,980,347.95 is: 194,999,509.31
Step by Step Solution
- Step 1: Write the proportion equation
395,862,789.84 : 593,882,467.56 = 129,980,347.95 : x - Step 2: Convert to fraction form
395,862,789.84/593,882,467.56 = 129,980,347.95/x - Step 3: Cross multiply
395,862,789.84x = 593,882,467.56 × 129,980,347.95 - Step 4: Simplify right side
395,862,789.84x = 77,193,049,774,853,376 - Step 5: Solve for x
x = 77,193,049,774,853,376/395,862,789.84 - Step 6: Final answer
x = 194,999,509.31
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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.