Finding the Fourth Proportional to 77,236,169.20, 106,484,490.46 and 55,735,761.98
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Solution
The fourth proportional to 77,236,169.20, 106,484,490.46 and 55,735,761.98 is: 76,842,161.86
Step by Step Solution
- Step 1: Write the proportion equation
77,236,169.20 : 106,484,490.46 = 55,735,761.98 : x - Step 2: Convert to fraction form
77,236,169.20/106,484,490.46 = 55,735,761.98/x - Step 3: Cross multiply
77,236,169.20x = 106,484,490.46 × 55,735,761.98 - Step 4: Simplify right side
77,236,169.20x = 5,934,994,215,176,022 - Step 5: Solve for x
x = 5,934,994,215,176,022/77,236,169.20 - Step 6: Final answer
x = 76,842,161.86
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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.