Finding the Fourth Proportional to 402,409,849.80, 603,614,774.70 and 115,195,513.80
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Solution
The fourth proportional to 402,409,849.80, 603,614,774.70 and 115,195,513.80 is: 172,793,270.70
Step by Step Solution
- Step 1: Write the proportion equation
402,409,849.80 : 603,614,774.70 = 115,195,513.80 : x - Step 2: Convert to fraction form
402,409,849.80/603,614,774.70 = 115,195,513.80/x - Step 3: Cross multiply
402,409,849.80x = 603,614,774.70 × 115,195,513.80 - Step 4: Simplify right side
402,409,849.80x = 69,533,714,108,837,744 - Step 5: Solve for x
x = 69,533,714,108,837,744/402,409,849.80 - Step 6: Final answer
x = 172,793,270.70
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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.