Finding the Fourth Proportional to 319,713,338.53, 478,707,747.67 and 208,774,193.41
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Solution
The fourth proportional to 319,713,338.53, 478,707,747.67 and 208,774,193.41 is: 312,598,230.52
Step by Step Solution
- Step 1: Write the proportion equation
319,713,338.53 : 478,707,747.67 = 208,774,193.41 : x - Step 2: Convert to fraction form
319,713,338.53/478,707,747.67 = 208,774,193.41/x - Step 3: Cross multiply
319,713,338.53x = 478,707,747.67 × 208,774,193.41 - Step 4: Simplify right side
319,713,338.53x = 99,941,823,898,922,064 - Step 5: Solve for x
x = 99,941,823,898,922,064/319,713,338.53 - Step 6: Final answer
x = 312,598,230.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.