Finding the Fourth Proportional to 475,577,965.80, 713,366,948.70 and 217,297,639.80
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Solution
The fourth proportional to 475,577,965.80, 713,366,948.70 and 217,297,639.80 is: 325,946,459.70
Step by Step Solution
- Step 1: Write the proportion equation
475,577,965.80 : 713,366,948.70 = 217,297,639.80 : x - Step 2: Convert to fraction form
475,577,965.80/713,366,948.70 = 217,297,639.80/x - Step 3: Cross multiply
475,577,965.80x = 713,366,948.70 × 217,297,639.80 - Step 4: Simplify right side
475,577,965.80x = 155,012,954,263,837,696 - Step 5: Solve for x
x = 155,012,954,263,837,696/475,577,965.80 - Step 6: Final answer
x = 325,946,459.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.