Finding the Fourth Proportional to 15,686,943.80, 23,530,415.70 and 7,183,887.80
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Solution
The fourth proportional to 15,686,943.80, 23,530,415.70 and 7,183,887.80 is: 10,775,831.70
Step by Step Solution
- Step 1: Write the proportion equation
15,686,943.80 : 23,530,415.70 = 7,183,887.80 : x - Step 2: Convert to fraction form
15,686,943.80/23,530,415.70 = 7,183,887.80/x - Step 3: Cross multiply
15,686,943.80x = 23,530,415.70 × 7,183,887.80 - Step 4: Simplify right side
15,686,943.80x = 169,039,866,276,158.44 - Step 5: Solve for x
x = 169,039,866,276,158.44/15,686,943.80 - Step 6: Final answer
x = 10,775,831.70
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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.