Finding the Fourth Proportional to 352,128,106.40, 528,192,159.60 and 170,393,655.20
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Solution
The fourth proportional to 352,128,106.40, 528,192,159.60 and 170,393,655.20 is: 255,590,482.80
Step by Step Solution
- Step 1: Write the proportion equation
352,128,106.40 : 528,192,159.60 = 170,393,655.20 : x - Step 2: Convert to fraction form
352,128,106.40/528,192,159.60 = 170,393,655.20/x - Step 3: Cross multiply
352,128,106.40x = 528,192,159.60 × 170,393,655.20 - Step 4: Simplify right side
352,128,106.40x = 90,000,592,722,225,760 - Step 5: Solve for x
x = 90,000,592,722,225,760/352,128,106.40 - Step 6: Final answer
x = 255,590,482.80
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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.