Finding the Fourth Proportional to 30,908,449.19, 42,651,526.24 and 17,156,330.75
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Solution
The fourth proportional to 30,908,449.19, 42,651,526.24 and 17,156,330.75 is: 23,674,552.12
Step by Step Solution
- Step 1: Write the proportion equation
30,908,449.19 : 42,651,526.24 = 17,156,330.75 : x - Step 2: Convert to fraction form
30,908,449.19/42,651,526.24 = 17,156,330.75/x - Step 3: Cross multiply
30,908,449.19x = 42,651,526.24 × 17,156,330.75 - Step 4: Simplify right side
30,908,449.19x = 731,743,691,165,743.88 - Step 5: Solve for x
x = 731,743,691,165,743.88/30,908,449.19 - Step 6: Final answer
x = 23,674,552.12
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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.