Finding the Fourth Proportional to 245,575,355.76, 338,861,829.12 and 146,467,734.72
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Solution
The fourth proportional to 245,575,355.76, 338,861,829.12 and 146,467,734.72 is: 202,106,291.74
Step by Step Solution
- Step 1: Write the proportion equation
245,575,355.76 : 338,861,829.12 = 146,467,734.72 : x - Step 2: Convert to fraction form
245,575,355.76/338,861,829.12 = 146,467,734.72/x - Step 3: Cross multiply
245,575,355.76x = 338,861,829.12 × 146,467,734.72 - Step 4: Simplify right side
245,575,355.76x = 49,632,324,494,282,128 - Step 5: Solve for x
x = 49,632,324,494,282,128/245,575,355.76 - Step 6: Final answer
x = 202,106,291.74
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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.