Finding the Fourth Proportional to 159,130,246,213.12, 219,598,622,644.76 and 86,872,311,057.28
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Solution
The fourth proportional to 159,130,246,213.12, 219,598,622,644.76 and 86,872,311,057.28 is: 119,883,179,396.31
Step by Step Solution
- Step 1: Write the proportion equation
159,130,246,213.12 : 219,598,622,644.76 = 86,872,311,057.28 : x - Step 2: Convert to fraction form
159,130,246,213.12/219,598,622,644.76 = 86,872,311,057.28/x - Step 3: Cross multiply
159,130,246,213.12x = 219,598,622,644.76 × 86,872,311,057.28 - Step 4: Simplify right side
159,130,246,213.12x = 19,077,039,854,145,842,970,624 - Step 5: Solve for x
x = 19,077,039,854,145,842,970,624/159,130,246,213.12 - Step 6: Final answer
x = 119,883,179,396.31
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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.