Finding the Fourth Proportional to 434,560,400.10, 651,840,600.15 and 395,021,189.70
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Solution
The fourth proportional to 434,560,400.10, 651,840,600.15 and 395,021,189.70 is: 592,531,784.55
Step by Step Solution
- Step 1: Write the proportion equation
434,560,400.10 : 651,840,600.15 = 395,021,189.70 : x - Step 2: Convert to fraction form
434,560,400.10/651,840,600.15 = 395,021,189.70/x - Step 3: Cross multiply
434,560,400.10x = 651,840,600.15 × 395,021,189.70 - Step 4: Simplify right side
434,560,400.10x = 257,490,849,366,014,976 - Step 5: Solve for x
x = 257,490,849,366,014,976/434,560,400.10 - Step 6: Final answer
x = 592,531,784.55
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1.5x scale
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.