Finding the Fourth Proportional to 210,338,796.98, 315,514,623.11 and 72,162,465.84
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Solution
The fourth proportional to 210,338,796.98, 315,514,623.11 and 72,162,465.84 is: 108,245,903.93
Step by Step Solution
- Step 1: Write the proportion equation
210,338,796.98 : 315,514,623.11 = 72,162,465.84 : x - Step 2: Convert to fraction form
210,338,796.98/315,514,623.11 = 72,162,465.84/x - Step 3: Cross multiply
210,338,796.98x = 315,514,623.11 × 72,162,465.84 - Step 4: Simplify right side
210,338,796.98x = 22,768,313,211,835,040 - Step 5: Solve for x
x = 22,768,313,211,835,040/210,338,796.98 - Step 6: Final answer
x = 108,245,903.93
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.