Finding the Fourth Proportional to 235,497,433.82, 324,980,518.69 and 129,649,792.70
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Solution
The fourth proportional to 235,497,433.82, 324,980,518.69 and 129,649,792.70 is: 178,913,443.75
Step by Step Solution
- Step 1: Write the proportion equation
235,497,433.82 : 324,980,518.69 = 129,649,792.70 : x - Step 2: Convert to fraction form
235,497,433.82/324,980,518.69 = 129,649,792.70/x - Step 3: Cross multiply
235,497,433.82x = 324,980,518.69 × 129,649,792.70 - Step 4: Simplify right side
235,497,433.82x = 42,133,656,880,185,304 - Step 5: Solve for x
x = 42,133,656,880,185,304/235,497,433.82 - Step 6: Final answer
x = 178,913,443.75
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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.