Finding the Fourth Proportional to 368,393,878.41, 508,380,920.07 and 201,130,134.17
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Solution
The fourth proportional to 368,393,878.41, 508,380,920.07 and 201,130,134.17 is: 277,558,148.09
Step by Step Solution
- Step 1: Write the proportion equation
368,393,878.41 : 508,380,920.07 = 201,130,134.17 : x - Step 2: Convert to fraction form
368,393,878.41/508,380,920.07 = 201,130,134.17/x - Step 3: Cross multiply
368,393,878.41x = 508,380,920.07 × 201,130,134.17 - Step 4: Simplify right side
368,393,878.41x = 102,250,722,660,983,360 - Step 5: Solve for x
x = 102,250,722,660,983,360/368,393,878.41 - Step 6: Final answer
x = 277,558,148.09
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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.