Finding the Fourth Proportional to 245,608,263.68, 338,969,125.08 and 139,787,407.80
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Solution
The fourth proportional to 245,608,263.68, 338,969,125.08 and 139,787,407.80 is: 192,923,538.52
Step by Step Solution
- Step 1: Write the proportion equation
245,608,263.68 : 338,969,125.08 = 139,787,407.80 : x - Step 2: Convert to fraction form
245,608,263.68/338,969,125.08 = 139,787,407.80/x - Step 3: Cross multiply
245,608,263.68x = 338,969,125.08 × 139,787,407.80 - Step 4: Simplify right side
245,608,263.68x = 47,383,615,319,167,168 - Step 5: Solve for x
x = 47,383,615,319,167,168/245,608,263.68 - Step 6: Final answer
x = 192,923,538.52
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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.