Finding the Fourth Proportional to 1,939,368,236.24, 2,909,052,392.97 and 465,508,045.49
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Solution
The fourth proportional to 1,939,368,236.24, 2,909,052,392.97 and 465,508,045.49 is: 698,262,077.50
Step by Step Solution
- Step 1: Write the proportion equation
1,939,368,236.24 : 2,909,052,392.97 = 465,508,045.49 : x - Step 2: Convert to fraction form
1,939,368,236.24/2,909,052,392.97 = 465,508,045.49/x - Step 3: Cross multiply
1,939,368,236.24x = 2,909,052,392.97 × 465,508,045.49 - Step 4: Simplify right side
1,939,368,236.24x = 1,354,187,293,664,926,720 - Step 5: Solve for x
x = 1,354,187,293,664,926,720/1,939,368,236.24 - Step 6: Final answer
x = 698,262,077.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.