Finding the Fourth Proportional to 118,272,204.24, 163,218,934.38 and 65,352,336.66
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Solution
The fourth proportional to 118,272,204.24, 163,218,934.38 and 65,352,336.66 is: 90,188,043.91
Step by Step Solution
- Step 1: Write the proportion equation
118,272,204.24 : 163,218,934.38 = 65,352,336.66 : x - Step 2: Convert to fraction form
118,272,204.24/163,218,934.38 = 65,352,336.66/x - Step 3: Cross multiply
118,272,204.24x = 163,218,934.38 × 65,352,336.66 - Step 4: Simplify right side
118,272,204.24x = 10,666,738,748,888,208 - Step 5: Solve for x
x = 10,666,738,748,888,208/118,272,204.24 - Step 6: Final answer
x = 90,188,043.91
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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.