Finding the Fourth Proportional to 208,029,765.60, 312,081,973.20 and 86,873,464.80
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Solution
The fourth proportional to 208,029,765.60, 312,081,973.20 and 86,873,464.80 is: 130,325,784.08
Step by Step Solution
- Step 1: Write the proportion equation
208,029,765.60 : 312,081,973.20 = 86,873,464.80 : x - Step 2: Convert to fraction form
208,029,765.60/312,081,973.20 = 86,873,464.80/x - Step 3: Cross multiply
208,029,765.60x = 312,081,973.20 × 86,873,464.80 - Step 4: Simplify right side
208,029,765.60x = 27,111,642,313,504,740 - Step 5: Solve for x
x = 27,111,642,313,504,740/208,029,765.60 - Step 6: Final answer
x = 130,325,784.08
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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.