Finding the Fourth Proportional to 168,497,180.40, 252,556,813.80 and 86,584,407.60
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Solution
The fourth proportional to 168,497,180.40, 252,556,813.80 and 86,584,407.60 is: 129,779,513.56
Step by Step Solution
- Step 1: Write the proportion equation
168,497,180.40 : 252,556,813.80 = 86,584,407.60 : x - Step 2: Convert to fraction form
168,497,180.40/252,556,813.80 = 86,584,407.60/x - Step 3: Cross multiply
168,497,180.40x = 252,556,813.80 × 86,584,407.60 - Step 4: Simplify right side
168,497,180.40x = 21,867,482,108,216,504 - Step 5: Solve for x
x = 21,867,482,108,216,504/168,497,180.40 - Step 6: Final answer
x = 129,779,513.56
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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.