Finding the Fourth Proportional to 4,278,528,079.80, 6,417,792,119.70 and 3,686,715,382.20
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Solution
The fourth proportional to 4,278,528,079.80, 6,417,792,119.70 and 3,686,715,382.20 is: 5,530,073,073.30
Step by Step Solution
- Step 1: Write the proportion equation
4,278,528,079.80 : 6,417,792,119.70 = 3,686,715,382.20 : x - Step 2: Convert to fraction form
4,278,528,079.80/6,417,792,119.70 = 3,686,715,382.20/x - Step 3: Cross multiply
4,278,528,079.80x = 6,417,792,119.70 × 3,686,715,382.20 - Step 4: Simplify right side
4,278,528,079.80x = 23,660,572,927,459,930,112 - Step 5: Solve for x
x = 23,660,572,927,459,930,112/4,278,528,079.80 - Step 6: Final answer
x = 5,530,073,073.30
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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.