Finding the Fourth Proportional to 545,001,947.68, 751,990,414.80 and 313,170,149.92
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Solution
The fourth proportional to 545,001,947.68, 751,990,414.80 and 313,170,149.92 is: 432,110,292.35
Step by Step Solution
- Step 1: Write the proportion equation
545,001,947.68 : 751,990,414.80 = 313,170,149.92 : x - Step 2: Convert to fraction form
545,001,947.68/751,990,414.80 = 313,170,149.92/x - Step 3: Cross multiply
545,001,947.68x = 751,990,414.80 × 313,170,149.92 - Step 4: Simplify right side
545,001,947.68x = 235,500,950,941,318,976 - Step 5: Solve for x
x = 235,500,950,941,318,976/545,001,947.68 - Step 6: Final answer
x = 432,110,292.35
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1.5x scale
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.