Finding the Fourth Proportional to 619,778,505.75, 929,790,334.51 and 177,125,156.79
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Solution
The fourth proportional to 619,778,505.75, 929,790,334.51 and 177,125,156.79 is: 265,722,765.88
Step by Step Solution
- Step 1: Write the proportion equation
619,778,505.75 : 929,790,334.51 = 177,125,156.79 : x - Step 2: Convert to fraction form
619,778,505.75/929,790,334.51 = 177,125,156.79/x - Step 3: Cross multiply
619,778,505.75x = 929,790,334.51 × 177,125,156.79 - Step 4: Simplify right side
619,778,505.75x = 164,689,258,781,910,304 - Step 5: Solve for x
x = 164,689,258,781,910,304/619,778,505.75 - Step 6: Final answer
x = 265,722,765.88
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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.