Finding the Fourth Proportional to 352,293,405.60, 528,440,108.40 and 221,346,343.20
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Solution
The fourth proportional to 352,293,405.60, 528,440,108.40 and 221,346,343.20 is: 332,019,514.80
Step by Step Solution
- Step 1: Write the proportion equation
352,293,405.60 : 528,440,108.40 = 221,346,343.20 : x - Step 2: Convert to fraction form
352,293,405.60/528,440,108.40 = 221,346,343.20/x - Step 3: Cross multiply
352,293,405.60x = 528,440,108.40 × 221,346,343.20 - Step 4: Simplify right side
352,293,405.60x = 116,968,285,594,551,584 - Step 5: Solve for x
x = 116,968,285,594,551,584/352,293,405.60 - Step 6: Final answer
x = 332,019,514.80
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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.