Finding the Fourth Proportional to 1,052,358,457.41, 1,450,757,541.69 and 717,401,135.07
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Solution
The fourth proportional to 1,052,358,457.41, 1,450,757,541.69 and 717,401,135.07 is: 988,992,961.28
Step by Step Solution
- Step 1: Write the proportion equation
1,052,358,457.41 : 1,450,757,541.69 = 717,401,135.07 : x - Step 2: Convert to fraction form
1,052,358,457.41/1,450,757,541.69 = 717,401,135.07/x - Step 3: Cross multiply
1,052,358,457.41x = 1,450,757,541.69 × 717,401,135.07 - Step 4: Simplify right side
1,052,358,457.41x = 1,040,775,107,119,768,960 - Step 5: Solve for x
x = 1,040,775,107,119,768,960/1,052,358,457.41 - Step 6: Final answer
x = 988,992,961.28
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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.