Finding the Fourth Proportional to 84,251,012.10, 126,376,518.15 and 69,638,352.90
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Solution
The fourth proportional to 84,251,012.10, 126,376,518.15 and 69,638,352.90 is: 104,457,529.35
Step by Step Solution
- Step 1: Write the proportion equation
84,251,012.10 : 126,376,518.15 = 69,638,352.90 : x - Step 2: Convert to fraction form
84,251,012.10/126,376,518.15 = 69,638,352.90/x - Step 3: Cross multiply
84,251,012.10x = 126,376,518.15 × 69,638,352.90 - Step 4: Simplify right side
84,251,012.10x = 8,800,652,569,202,956 - Step 5: Solve for x
x = 8,800,652,569,202,956/84,251,012.10 - Step 6: Final answer
x = 104,457,529.35
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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.