Finding the Fourth Proportional to 224,247,052.32, 309,414,712.96 and 128,859,131.68
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Solution
The fourth proportional to 224,247,052.32, 309,414,712.96 and 128,859,131.68 is: 177,799,042.75
Step by Step Solution
- Step 1: Write the proportion equation
224,247,052.32 : 309,414,712.96 = 128,859,131.68 : x - Step 2: Convert to fraction form
224,247,052.32/309,414,712.96 = 128,859,131.68/x - Step 3: Cross multiply
224,247,052.32x = 309,414,712.96 × 128,859,131.68 - Step 4: Simplify right side
224,247,052.32x = 39,870,911,241,042,040 - Step 5: Solve for x
x = 39,870,911,241,042,040/224,247,052.32 - Step 6: Final answer
x = 177,799,042.75
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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.