Finding the Fourth Proportional to 30,908,461.14, 42,651,542.70 and 17,156,342.70
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Solution
The fourth proportional to 30,908,461.14, 42,651,542.70 and 17,156,342.70 is: 23,674,568.59
Step by Step Solution
- Step 1: Write the proportion equation
30,908,461.14 : 42,651,542.70 = 17,156,342.70 : x - Step 2: Convert to fraction form
30,908,461.14/42,651,542.70 = 17,156,342.70/x - Step 3: Cross multiply
30,908,461.14x = 42,651,542.70 × 17,156,342.70 - Step 4: Simplify right side
30,908,461.14x = 731,744,483,244,883.25 - Step 5: Solve for x
x = 731,744,483,244,883.25/30,908,461.14 - Step 6: Final answer
x = 23,674,568.59
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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.