Finding the Fourth Proportional to 352,293,410.10, 528,440,115.15 and 221,346,347.70
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Solution
The fourth proportional to 352,293,410.10, 528,440,115.15 and 221,346,347.70 is: 332,019,521.55
Step by Step Solution
- Step 1: Write the proportion equation
352,293,410.10 : 528,440,115.15 = 221,346,347.70 : x - Step 2: Convert to fraction form
352,293,410.10/528,440,115.15 = 221,346,347.70/x - Step 3: Cross multiply
352,293,410.10x = 528,440,115.15 × 221,346,347.70 - Step 4: Simplify right side
352,293,410.10x = 116,968,289,466,619,920 - Step 5: Solve for x
x = 116,968,289,466,619,920/352,293,410.10 - Step 6: Final answer
x = 332,019,521.55
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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.