Finding the Fourth Proportional to 808,583,751.57, 1,115,845,576.35 and 437,305,782.54
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Solution
The fourth proportional to 808,583,751.57, 1,115,845,576.35 and 437,305,782.54 is: 603,481,979.46
Step by Step Solution
- Step 1: Write the proportion equation
808,583,751.57 : 1,115,845,576.35 = 437,305,782.54 : x - Step 2: Convert to fraction form
808,583,751.57/1,115,845,576.35 = 437,305,782.54/x - Step 3: Cross multiply
808,583,751.57x = 1,115,845,576.35 × 437,305,782.54 - Step 4: Simplify right side
808,583,751.57x = 487,965,722,959,534,080 - Step 5: Solve for x
x = 487,965,722,959,534,080/808,583,751.57 - Step 6: Final answer
x = 603,481,979.46
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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.