Finding the Fourth Proportional to 409,756,345.92, 614,546,455.83 and 129,659,456.53
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Solution
The fourth proportional to 409,756,345.92, 614,546,455.83 and 129,659,456.53 is: 194,461,318.95
Step by Step Solution
- Step 1: Write the proportion equation
409,756,345.92 : 614,546,455.83 = 129,659,456.53 : x - Step 2: Convert to fraction form
409,756,345.92/614,546,455.83 = 129,659,456.53/x - Step 3: Cross multiply
409,756,345.92x = 614,546,455.83 × 129,659,456.53 - Step 4: Simplify right side
409,756,345.92x = 79,681,759,476,366,096 - Step 5: Solve for x
x = 79,681,759,476,366,096/409,756,345.92 - Step 6: Final answer
x = 194,461,318.95
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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.