Finding the Fourth Proportional to 368,393,878.13, 508,380,919.68 and 201,130,133.88
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Solution
The fourth proportional to 368,393,878.13, 508,380,919.68 and 201,130,133.88 is: 277,558,147.71
Step by Step Solution
- Step 1: Write the proportion equation
368,393,878.13 : 508,380,919.68 = 201,130,133.88 : x - Step 2: Convert to fraction form
368,393,878.13/508,380,919.68 = 201,130,133.88/x - Step 3: Cross multiply
368,393,878.13x = 508,380,919.68 × 201,130,133.88 - Step 4: Simplify right side
368,393,878.13x = 102,250,722,439,936,576 - Step 5: Solve for x
x = 102,250,722,439,936,576/368,393,878.13 - Step 6: Final answer
x = 277,558,147.71
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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.