Finding the Fourth Proportional to 1,135,747,957.32, 1,567,347,409.62 and 640,709,134.92
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Solution
The fourth proportional to 1,135,747,957.32, 1,567,347,409.62 and 640,709,134.92 is: 884,187,197.05
Step by Step Solution
- Step 1: Write the proportion equation
1,135,747,957.32 : 1,567,347,409.62 = 640,709,134.92 : x - Step 2: Convert to fraction form
1,135,747,957.32/1,567,347,409.62 = 640,709,134.92/x - Step 3: Cross multiply
1,135,747,957.32x = 1,567,347,409.62 × 640,709,134.92 - Step 4: Simplify right side
1,135,747,957.32x = 1,004,213,802,936,732,928 - Step 5: Solve for x
x = 1,004,213,802,936,732,928/1,135,747,957.32 - Step 6: Final answer
x = 884,187,197.05
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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.