Finding the Fourth Proportional to 53,276,615.12, 73,521,793.86 and 28,830,329.12
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Solution
The fourth proportional to 53,276,615.12, 73,521,793.86 and 28,830,329.12 is: 39,785,889.36
Step by Step Solution
- Step 1: Write the proportion equation
53,276,615.12 : 73,521,793.86 = 28,830,329.12 : x - Step 2: Convert to fraction form
53,276,615.12/73,521,793.86 = 28,830,329.12/x - Step 3: Cross multiply
53,276,615.12x = 73,521,793.86 × 28,830,329.12 - Step 4: Simplify right side
53,276,615.12x = 2,119,657,514,476,595.25 - Step 5: Solve for x
x = 2,119,657,514,476,595.25/53,276,615.12 - Step 6: Final answer
x = 39,785,889.36
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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.