Finding the Fourth Proportional to 314,930,910.70, 472,396,366.05 and 142,413,352.30
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Solution
The fourth proportional to 314,930,910.70, 472,396,366.05 and 142,413,352.30 is: 213,620,028.45
Step by Step Solution
- Step 1: Write the proportion equation
314,930,910.70 : 472,396,366.05 = 142,413,352.30 : x - Step 2: Convert to fraction form
314,930,910.70/472,396,366.05 = 142,413,352.30/x - Step 3: Cross multiply
314,930,910.70x = 472,396,366.05 × 142,413,352.30 - Step 4: Simplify right side
314,930,910.70x = 67,275,550,103,518,416 - Step 5: Solve for x
x = 67,275,550,103,518,416/314,930,910.70 - Step 6: Final answer
x = 213,620,028.45
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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.