Finding the Fourth Proportional to 81,331,331.77, 122,000,921.09 and 26,742,708.62
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Solution
The fourth proportional to 81,331,331.77, 122,000,921.09 and 26,742,708.62 is: 40,115,353.00
Step by Step Solution
- Step 1: Write the proportion equation
81,331,331.77 : 122,000,921.09 = 26,742,708.62 : x - Step 2: Convert to fraction form
81,331,331.77/122,000,921.09 = 26,742,708.62/x - Step 3: Cross multiply
81,331,331.77x = 122,000,921.09 × 26,742,708.62 - Step 4: Simplify right side
81,331,331.77x = 3,262,635,084,081,483 - Step 5: Solve for x
x = 3,262,635,084,081,483/81,331,331.77 - Step 6: Final answer
x = 40,115,353.00
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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.