Finding the Fourth Proportional to 421,851,864.18, 582,155,370.09 and 252,306,098.99
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Solution
The fourth proportional to 421,851,864.18, 582,155,370.09 and 252,306,098.99 is: 348,182,295.51
Step by Step Solution
- Step 1: Write the proportion equation
421,851,864.18 : 582,155,370.09 = 252,306,098.99 : x - Step 2: Convert to fraction form
421,851,864.18/582,155,370.09 = 252,306,098.99/x - Step 3: Cross multiply
421,851,864.18x = 582,155,370.09 × 252,306,098.99 - Step 4: Simplify right side
421,851,864.18x = 146,881,350,433,487,648 - Step 5: Solve for x
x = 146,881,350,433,487,648/421,851,864.18 - Step 6: Final answer
x = 348,182,295.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.