Finding the Fourth Proportional to 4,881,727,473.48, 6,738,217,640.37 and 3,188,440,980.90
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Solution
The fourth proportional to 4,881,727,473.48, 6,738,217,640.37 and 3,188,440,980.90 is: 4,400,984,974.99
Step by Step Solution
- Step 1: Write the proportion equation
4,881,727,473.48 : 6,738,217,640.37 = 3,188,440,980.90 : x - Step 2: Convert to fraction form
4,881,727,473.48/6,738,217,640.37 = 3,188,440,980.90/x - Step 3: Cross multiply
4,881,727,473.48x = 6,738,217,640.37 × 3,188,440,980.90 - Step 4: Simplify right side
4,881,727,473.48x = 21,484,409,262,779,006,976 - Step 5: Solve for x
x = 21,484,409,262,779,006,976/4,881,727,473.48 - Step 6: Final answer
x = 4,400,984,974.99
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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.