Finding the Fourth Proportional to 321,055,472.99, 443,054,117.63 and 174,378,806.75
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Solution
The fourth proportional to 321,055,472.99, 443,054,117.63 and 174,378,806.75 is: 240,641,430.71
Step by Step Solution
- Step 1: Write the proportion equation
321,055,472.99 : 443,054,117.63 = 174,378,806.75 : x - Step 2: Convert to fraction form
321,055,472.99/443,054,117.63 = 174,378,806.75/x - Step 3: Cross multiply
321,055,472.99x = 443,054,117.63 × 174,378,806.75 - Step 4: Simplify right side
321,055,472.99x = 77,259,248,356,214,208 - Step 5: Solve for x
x = 77,259,248,356,214,208/321,055,472.99 - Step 6: Final answer
x = 240,641,430.71
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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.