Finding the Fourth Proportional to 190,804,638.72, 263,316,879.36 and 107,187,525.12
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Solution
The fourth proportional to 190,804,638.72, 263,316,879.36 and 107,187,525.12 is: 147,922,423.74
Step by Step Solution
- Step 1: Write the proportion equation
190,804,638.72 : 263,316,879.36 = 107,187,525.12 : x - Step 2: Convert to fraction form
190,804,638.72/263,316,879.36 = 107,187,525.12/x - Step 3: Cross multiply
190,804,638.72x = 263,316,879.36 × 107,187,525.12 - Step 4: Simplify right side
190,804,638.72x = 28,224,284,620,920,012 - Step 5: Solve for x
x = 28,224,284,620,920,012/190,804,638.72 - Step 6: Final answer
x = 147,922,423.74
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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.