Finding the Fourth Proportional to 30,588,538.10, 42,213,296.47 and 16,649,219.99
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Solution
The fourth proportional to 30,588,538.10, 42,213,296.47 and 16,649,219.99 is: 22,976,529.87
Step by Step Solution
- Step 1: Write the proportion equation
30,588,538.10 : 42,213,296.47 = 16,649,219.99 : x - Step 2: Convert to fraction form
30,588,538.10/42,213,296.47 = 16,649,219.99/x - Step 3: Cross multiply
30,588,538.10x = 42,213,296.47 × 16,649,219.99 - Step 4: Simplify right side
30,588,538.10x = 702,818,459,432,120.38 - Step 5: Solve for x
x = 702,818,459,432,120.38/30,588,538.10 - Step 6: Final answer
x = 22,976,529.87
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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.