Finding the Fourth Proportional to 319,852,908.56, 479,779,362.84 and 77,515,812.56
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Solution
The fourth proportional to 319,852,908.56, 479,779,362.84 and 77,515,812.56 is: 116,273,718.84
Step by Step Solution
- Step 1: Write the proportion equation
319,852,908.56 : 479,779,362.84 = 77,515,812.56 : x - Step 2: Convert to fraction form
319,852,908.56/479,779,362.84 = 77,515,812.56/x - Step 3: Cross multiply
319,852,908.56x = 479,779,362.84 × 77,515,812.56 - Step 4: Simplify right side
319,852,908.56x = 37,190,487,161,551,800 - Step 5: Solve for x
x = 37,190,487,161,551,800/319,852,908.56 - Step 6: Final answer
x = 116,273,718.84
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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.