Finding the Fourth Proportional to 218,539,633.76, 301,585,449.26 and 119,420,385.59
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Solution
The fourth proportional to 218,539,633.76, 301,585,449.26 and 119,420,385.59 is: 164,800,544.50
Step by Step Solution
- Step 1: Write the proportion equation
218,539,633.76 : 301,585,449.26 = 119,420,385.59 : x - Step 2: Convert to fraction form
218,539,633.76/301,585,449.26 = 119,420,385.59/x - Step 3: Cross multiply
218,539,633.76x = 301,585,449.26 × 119,420,385.59 - Step 4: Simplify right side
218,539,633.76x = 36,015,450,638,962,580 - Step 5: Solve for x
x = 36,015,450,638,962,580/218,539,633.76 - Step 6: Final answer
x = 164,800,544.50
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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.