Finding the Fourth Proportional to 394,970,971.17, 545,426,324.15 and 295,679,338.95
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Solution
The fourth proportional to 394,970,971.17, 545,426,324.15 and 295,679,338.95 is: 408,311,766.54
Step by Step Solution
- Step 1: Write the proportion equation
394,970,971.17 : 545,426,324.15 = 295,679,338.95 : x - Step 2: Convert to fraction form
394,970,971.17/545,426,324.15 = 295,679,338.95/x - Step 3: Cross multiply
394,970,971.17x = 545,426,324.15 × 295,679,338.95 - Step 4: Simplify right side
394,970,971.17x = 161,271,294,969,122,016 - Step 5: Solve for x
x = 161,271,294,969,122,016/394,970,971.17 - Step 6: Final answer
x = 408,311,766.54
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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.