Finding the Fourth Proportional to 115,750,965.72, 159,735,702.02 and 63,540,889.68
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Solution
The fourth proportional to 115,750,965.72, 159,735,702.02 and 63,540,889.68 is: 87,686,081.55
Step by Step Solution
- Step 1: Write the proportion equation
115,750,965.72 : 159,735,702.02 = 63,540,889.68 : x - Step 2: Convert to fraction form
115,750,965.72/159,735,702.02 = 63,540,889.68/x - Step 3: Cross multiply
115,750,965.72x = 159,735,702.02 × 63,540,889.68 - Step 4: Simplify right side
115,750,965.72x = 10,149,748,620,010,174 - Step 5: Solve for x
x = 10,149,748,620,010,174/115,750,965.72 - Step 6: Final answer
x = 87,686,081.55
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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.