Finding the Fourth Proportional to 103,605,896.24, 142,972,388.61 and 57,195,153.62
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Solution
The fourth proportional to 103,605,896.24, 142,972,388.61 and 57,195,153.62 is: 78,927,242.82
Step by Step Solution
- Step 1: Write the proportion equation
103,605,896.24 : 142,972,388.61 = 57,195,153.62 : x - Step 2: Convert to fraction form
103,605,896.24/142,972,388.61 = 57,195,153.62/x - Step 3: Cross multiply
103,605,896.24x = 142,972,388.61 × 57,195,153.62 - Step 4: Simplify right side
103,605,896.24x = 8,177,327,729,967,289 - Step 5: Solve for x
x = 8,177,327,729,967,289/103,605,896.24 - Step 6: Final answer
x = 78,927,242.82
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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.