Finding the Fourth Proportional to 207,790,223.92, 286,625,571.12 and 137,226,483.28
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Solution
The fourth proportional to 207,790,223.92, 286,625,571.12 and 137,226,483.28 is: 189,290,036.85
Step by Step Solution
- Step 1: Write the proportion equation
207,790,223.92 : 286,625,571.12 = 137,226,483.28 : x - Step 2: Convert to fraction form
207,790,223.92/286,625,571.12 = 137,226,483.28/x - Step 3: Cross multiply
207,790,223.92x = 286,625,571.12 × 137,226,483.28 - Step 4: Simplify right side
207,790,223.92x = 39,332,619,142,919,128 - Step 5: Solve for x
x = 39,332,619,142,919,128/207,790,223.92 - Step 6: Final answer
x = 189,290,036.85
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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.