Finding the Fourth Proportional to 358,947,479.98, 495,346,543.28 and 200,177,775.37
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Solution
The fourth proportional to 358,947,479.98, 495,346,543.28 and 200,177,775.37 is: 276,244,783.99
Step by Step Solution
- Step 1: Write the proportion equation
358,947,479.98 : 495,346,543.28 = 200,177,775.37 : x - Step 2: Convert to fraction form
358,947,479.98/495,346,543.28 = 200,177,775.37/x - Step 3: Cross multiply
358,947,479.98x = 495,346,543.28 × 200,177,775.37 - Step 4: Simplify right side
358,947,479.98x = 99,157,369,071,009,824 - Step 5: Solve for x
x = 99,157,369,071,009,824/358,947,479.98 - Step 6: Final answer
x = 276,244,783.99
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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.