Finding the Fourth Proportional to 228,638,013.36, 315,514,315.81 and 134,557,695.60
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Solution
The fourth proportional to 228,638,013.36, 315,514,315.81 and 134,557,695.60 is: 185,686,004.88
Step by Step Solution
- Step 1: Write the proportion equation
228,638,013.36 : 315,514,315.81 = 134,557,695.60 : x - Step 2: Convert to fraction form
228,638,013.36/315,514,315.81 = 134,557,695.60/x - Step 3: Cross multiply
228,638,013.36x = 315,514,315.81 × 134,557,695.60 - Step 4: Simplify right side
228,638,013.36x = 42,454,879,264,204,248 - Step 5: Solve for x
x = 42,454,879,264,204,248/228,638,013.36 - Step 6: Final answer
x = 185,686,004.88
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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.