Finding the Fourth Proportional to 149,770,854.35, 206,679,929.59 and 83,691,895.49
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Solution
The fourth proportional to 149,770,854.35, 206,679,929.59 and 83,691,895.49 is: 115,492,664.73
Step by Step Solution
- Step 1: Write the proportion equation
149,770,854.35 : 206,679,929.59 = 83,691,895.49 : x - Step 2: Convert to fraction form
149,770,854.35/206,679,929.59 = 83,691,895.49/x - Step 3: Cross multiply
149,770,854.35x = 206,679,929.59 × 83,691,895.49 - Step 4: Simplify right side
149,770,854.35x = 17,297,435,067,126,838 - Step 5: Solve for x
x = 17,297,435,067,126,838/149,770,854.35 - Step 6: Final answer
x = 115,492,664.73
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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.