Finding the Fourth Proportional to 48,385,010.40, 72,521,528.40 and 19,616,920.80
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Solution
The fourth proportional to 48,385,010.40, 72,521,528.40 and 19,616,920.80 is: 29,402,682.09
Step by Step Solution
- Step 1: Write the proportion equation
48,385,010.40 : 72,521,528.40 = 19,616,920.80 : x - Step 2: Convert to fraction form
48,385,010.40/72,521,528.40 = 19,616,920.80/x - Step 3: Cross multiply
48,385,010.40x = 72,521,528.40 × 19,616,920.80 - Step 4: Simplify right side
48,385,010.40x = 1,422,649,078,917,751 - Step 5: Solve for x
x = 1,422,649,078,917,751/48,385,010.40 - Step 6: Final answer
x = 29,402,682.09
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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.