Finding the Fourth Proportional to 289,539,651.20, 399,567,557.81 and 157,380,566.15
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Solution
The fourth proportional to 289,539,651.20, 399,567,557.81 and 157,380,566.15 is: 217,186,724.53
Step by Step Solution
- Step 1: Write the proportion equation
289,539,651.20 : 399,567,557.81 = 157,380,566.15 : x - Step 2: Convert to fraction form
289,539,651.20/399,567,557.81 = 157,380,566.15/x - Step 3: Cross multiply
289,539,651.20x = 399,567,557.81 × 157,380,566.15 - Step 4: Simplify right side
289,539,651.20x = 62,884,168,464,703,024 - Step 5: Solve for x
x = 62,884,168,464,703,024/289,539,651.20 - Step 6: Final answer
x = 217,186,724.53
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.