Finding the Fourth Proportional to 115,118,881.92, 158,848,758.72 and 73,921,582.08
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Solution
The fourth proportional to 115,118,881.92, 158,848,758.72 and 73,921,582.08 is: 102,001,959.71
Step by Step Solution
- Step 1: Write the proportion equation
115,118,881.92 : 158,848,758.72 = 73,921,582.08 : x - Step 2: Convert to fraction form
115,118,881.92/158,848,758.72 = 73,921,582.08/x - Step 3: Cross multiply
115,118,881.92x = 158,848,758.72 × 73,921,582.08 - Step 4: Simplify right side
115,118,881.92x = 11,742,351,556,026,596 - Step 5: Solve for x
x = 11,742,351,556,026,596/115,118,881.92 - Step 6: Final answer
x = 102,001,959.71
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1.5x scale
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.