Finding the Fourth Proportional to 81,720,696.24, 122,278,254.12 and 65,497,442.76
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Solution
The fourth proportional to 81,720,696.24, 122,278,254.12 and 65,497,442.76 is: 98,003,484.04
Step by Step Solution
- Step 1: Write the proportion equation
81,720,696.24 : 122,278,254.12 = 65,497,442.76 : x - Step 2: Convert to fraction form
81,720,696.24/122,278,254.12 = 65,497,442.76/x - Step 3: Cross multiply
81,720,696.24x = 122,278,254.12 × 65,497,442.76 - Step 4: Simplify right side
81,720,696.24x = 8,008,912,950,017,434 - Step 5: Solve for x
x = 8,008,912,950,017,434/81,720,696.24 - Step 6: Final answer
x = 98,003,484.04
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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.