Finding the Fourth Proportional to 115,292,727.20, 159,103,858.56 and 63,081,980.48
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Solution
The fourth proportional to 115,292,727.20, 159,103,858.56 and 63,081,980.48 is: 87,053,075.63
Step by Step Solution
- Step 1: Write the proportion equation
115,292,727.20 : 159,103,858.56 = 63,081,980.48 : x - Step 2: Convert to fraction form
115,292,727.20/159,103,858.56 = 63,081,980.48/x - Step 3: Cross multiply
115,292,727.20x = 159,103,858.56 × 63,081,980.48 - Step 4: Simplify right side
115,292,727.20x = 10,036,586,499,974,600 - Step 5: Solve for x
x = 10,036,586,499,974,600/115,292,727.20 - Step 6: Final answer
x = 87,053,075.63
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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.