Finding the Fourth Proportional to 402,409,847.80, 603,614,771.70 and 115,195,511.80
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Solution
The fourth proportional to 402,409,847.80, 603,614,771.70 and 115,195,511.80 is: 172,793,267.70
Step by Step Solution
- Step 1: Write the proportion equation
402,409,847.80 : 603,614,771.70 = 115,195,511.80 : x - Step 2: Convert to fraction form
402,409,847.80/603,614,771.70 = 115,195,511.80/x - Step 3: Cross multiply
402,409,847.80x = 603,614,771.70 × 115,195,511.80 - Step 4: Simplify right side
402,409,847.80x = 69,533,712,556,021,656 - Step 5: Solve for x
x = 69,533,712,556,021,656/402,409,847.80 - Step 6: Final answer
x = 172,793,267.70
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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.