Finding the Fourth Proportional to 291,949,947.97, 402,847,587.82 and 177,317,682.20
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Solution
The fourth proportional to 291,949,947.97, 402,847,587.82 and 177,317,682.20 is: 244,672,078.37
Step by Step Solution
- Step 1: Write the proportion equation
291,949,947.97 : 402,847,587.82 = 177,317,682.20 : x - Step 2: Convert to fraction form
291,949,947.97/402,847,587.82 = 177,317,682.20/x - Step 3: Cross multiply
291,949,947.97x = 402,847,587.82 × 177,317,682.20 - Step 4: Simplify right side
291,949,947.97x = 71,432,000,550,191,176 - Step 5: Solve for x
x = 71,432,000,550,191,176/291,949,947.97 - Step 6: Final answer
x = 244,672,078.37
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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.