Finding the Fourth Proportional to 543,751,208.28, 750,179,831.40 and 355,686,850.08
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Solution
The fourth proportional to 543,751,208.28, 750,179,831.40 and 355,686,850.08 is: 490,719,095.72
Step by Step Solution
- Step 1: Write the proportion equation
543,751,208.28 : 750,179,831.40 = 355,686,850.08 : x - Step 2: Convert to fraction form
543,751,208.28/750,179,831.40 = 355,686,850.08/x - Step 3: Cross multiply
543,751,208.28x = 750,179,831.40 × 355,686,850.08 - Step 4: Simplify right side
543,751,208.28x = 266,829,101,224,211,456 - Step 5: Solve for x
x = 266,829,101,224,211,456/543,751,208.28 - Step 6: Final answer
x = 490,719,095.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.