Finding the Fourth Proportional to 30,660,195.99, 42,311,112.45 and 16,721,584.77
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Solution
The fourth proportional to 30,660,195.99, 42,311,112.45 and 16,721,584.77 is: 23,075,809.88
Step by Step Solution
- Step 1: Write the proportion equation
30,660,195.99 : 42,311,112.45 = 16,721,584.77 : x - Step 2: Convert to fraction form
30,660,195.99/42,311,112.45 = 16,721,584.77/x - Step 3: Cross multiply
30,660,195.99x = 42,311,112.45 × 16,721,584.77 - Step 4: Simplify right side
30,660,195.99x = 707,508,853,545,677.38 - Step 5: Solve for x
x = 707,508,853,545,677.38/30,660,195.99 - Step 6: Final answer
x = 23,075,809.88
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1.5x scale
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.