Finding the Fourth Proportional to 245,423,714.16, 338,691,812.44 and 135,422,512.88
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Solution
The fourth proportional to 245,423,714.16, 338,691,812.44 and 135,422,512.88 is: 186,886,978.26
Step by Step Solution
- Step 1: Write the proportion equation
245,423,714.16 : 338,691,812.44 = 135,422,512.88 : x - Step 2: Convert to fraction form
245,423,714.16/338,691,812.44 = 135,422,512.88/x - Step 3: Cross multiply
245,423,714.16x = 338,691,812.44 × 135,422,512.88 - Step 4: Simplify right side
245,423,714.16x = 45,866,496,332,506,440 - Step 5: Solve for x
x = 45,866,496,332,506,440/245,423,714.16 - Step 6: Final answer
x = 186,886,978.26
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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.