Finding the Fourth Proportional to 3,639,169,409.90, 5,458,754,114.85 and 1,185,754,318.70
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Solution
The fourth proportional to 3,639,169,409.90, 5,458,754,114.85 and 1,185,754,318.70 is: 1,778,631,478.05
Step by Step Solution
- Step 1: Write the proportion equation
3,639,169,409.90 : 5,458,754,114.85 = 1,185,754,318.70 : x - Step 2: Convert to fraction form
3,639,169,409.90/5,458,754,114.85 = 1,185,754,318.70/x - Step 3: Cross multiply
3,639,169,409.90x = 5,458,754,114.85 × 1,185,754,318.70 - Step 4: Simplify right side
3,639,169,409.90x = 6,472,741,266,404,784,128 - Step 5: Solve for x
x = 6,472,741,266,404,784,128/3,639,169,409.90 - Step 6: Final answer
x = 1,778,631,478.05
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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.