Finding the Fourth Proportional to 343,739,571.52, 515,604,305.20 and 84,954,814.08
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Solution
The fourth proportional to 343,739,571.52, 515,604,305.20 and 84,954,814.08 is: 127,430,972.50
Step by Step Solution
- Step 1: Write the proportion equation
343,739,571.52 : 515,604,305.20 = 84,954,814.08 : x - Step 2: Convert to fraction form
343,739,571.52/515,604,305.20 = 84,954,814.08/x - Step 3: Cross multiply
343,739,571.52x = 515,604,305.20 × 84,954,814.08 - Step 4: Simplify right side
343,739,571.52x = 43,803,067,887,113,576 - Step 5: Solve for x
x = 43,803,067,887,113,576/343,739,571.52 - Step 6: Final answer
x = 127,430,972.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.