Finding the Fourth Proportional to 106,514,987.70, 159,772,481.55 and 84,991,627.20
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Solution
The fourth proportional to 106,514,987.70, 159,772,481.55 and 84,991,627.20 is: 127,487,440.80
Step by Step Solution
- Step 1: Write the proportion equation
106,514,987.70 : 159,772,481.55 = 84,991,627.20 : x - Step 2: Convert to fraction form
106,514,987.70/159,772,481.55 = 84,991,627.20/x - Step 3: Cross multiply
106,514,987.70x = 159,772,481.55 × 84,991,627.20 - Step 4: Simplify right side
106,514,987.70x = 13,579,323,188,716,480 - Step 5: Solve for x
x = 13,579,323,188,716,480/106,514,987.70 - Step 6: Final answer
x = 127,487,440.80
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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.