Finding the Fourth Proportional to 130,512,789, 180,104,051.88 and 71,775,452.70
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Solution
The fourth proportional to 130,512,789, 180,104,051.88 and 71,775,452.70 is: 99,048,146.59
Step by Step Solution
- Step 1: Write the proportion equation
130,512,789 : 180,104,051.88 = 71,775,452.70 : x - Step 2: Convert to fraction form
130,512,789/180,104,051.88 = 71,775,452.70/x - Step 3: Cross multiply
130,512,789x = 180,104,051.88 × 71,775,452.70 - Step 4: Simplify right side
130,512,789x = 12,927,049,856,791,286 - Step 5: Solve for x
x = 12,927,049,856,791,286/130,512,789 - Step 6: Final answer
x = 99,048,146.59
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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.