Finding the Fourth Proportional to 1,284,159,609.48, 1,772,149,331 and 697,448,745.48
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Solution
The fourth proportional to 1,284,159,609.48, 1,772,149,331 and 697,448,745.48 is: 962,484,194.79
Step by Step Solution
- Step 1: Write the proportion equation
1,284,159,609.48 : 1,772,149,331 = 697,448,745.48 : x - Step 2: Convert to fraction form
1,284,159,609.48/1,772,149,331 = 697,448,745.48/x - Step 3: Cross multiply
1,284,159,609.48x = 1,772,149,331 × 697,448,745.48 - Step 4: Simplify right side
1,284,159,609.48x = 1,235,983,327,709,171,200 - Step 5: Solve for x
x = 1,235,983,327,709,171,200/1,284,159,609.48 - Step 6: Final answer
x = 962,484,194.79
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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.