Finding the Fourth Proportional to 177,920,420.88, 245,523,007.08 and 103,583,120.76
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Solution
The fourth proportional to 177,920,420.88, 245,523,007.08 and 103,583,120.76 is: 142,940,530.19
Step by Step Solution
- Step 1: Write the proportion equation
177,920,420.88 : 245,523,007.08 = 103,583,120.76 : x - Step 2: Convert to fraction form
177,920,420.88/245,523,007.08 = 103,583,120.76/x - Step 3: Cross multiply
177,920,420.88x = 245,523,007.08 × 103,583,120.76 - Step 4: Simplify right side
177,920,420.88x = 25,432,039,291,725,976 - Step 5: Solve for x
x = 25,432,039,291,725,976/177,920,420.88 - Step 6: Final answer
x = 142,940,530.19
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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.