Finding the Fourth Proportional to 207,141,128.13, 310,752,623.67 and 75,984,621.41
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Solution
The fourth proportional to 207,141,128.13, 310,752,623.67 and 75,984,621.41 is: 113,991,946.81
Step by Step Solution
- Step 1: Write the proportion equation
207,141,128.13 : 310,752,623.67 = 75,984,621.41 : x - Step 2: Convert to fraction form
207,141,128.13/310,752,623.67 = 75,984,621.41/x - Step 3: Cross multiply
207,141,128.13x = 310,752,623.67 × 75,984,621.41 - Step 4: Simplify right side
207,141,128.13x = 23,612,420,460,175,392 - Step 5: Solve for x
x = 23,612,420,460,175,392/207,141,128.13 - Step 6: Final answer
x = 113,991,946.81
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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.